2025-12-5 10.1.6.65
Code of China Chinese Classification Professional Classification ICS Classification Latest News Value-added Services

Position: Chinese Standard in English/GB/T 44437-2024
GB/T 44437-2024   Elderly oriented design furniture—General technical requirements (English Version)
Standard No.: GB/T 44437-2024 Status:valid remind me the status change

Email:

Target Language:English File Format:PDF
Word Count: 17000 words Translation Price(USD):510.0 remind me the price change

Email:

Implemented on:2025-3-1 Delivery: via email in 1~3 business day

→ → →

,,2025-3-1,CFD6329D3E4AE9EE1724728687460
Standard No.: GB/T 44437-2024
English Name: Elderly oriented design furniture—General technical requirements
Chinese Name: 适老家具 通用技术要求
Chinese Classification: Y80    Furniture in general
Professional Classification: GB    National Standard
Source Content Issued by: SAMR;SAC
Issued on: 2024-8-23
Implemented on: 2025-3-1
Status: valid
Target Language: English
File Format: PDF
Word Count: 17000 words
Translation Price(USD): 510.0
Delivery: via email in 1~3 business day
GB/T 44437-2024 Elderly oriented design furniture - General technical requirements 1 Scope This document specifies the classification, requirements, inspection rules, marking, instructions for use, packaging, storage and transportation of elderly oriented design furniture, and describes the corresponding test methods. This document is applicable to the design, manufacturing & machining, quality inspection, and quality assessment of elderly oriented design furniture. 2 Normative references The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 1043.1 Plastics - Determination of charpy impact properties - Part 1: Non-instrumented impact test GB/T 1732 Determination of impact resistance of film GB/T 1927.4 Test methods for physical and mechanical properties of small clear wood specimens - Part 4: Determination of moisture content GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 3324-2017 General technical requirements for wooden furniture GB/T 3325-2017 General technical requirements for metal furniture GB/T 3326-2016 Furniture - Main sizes of tables, chairs and stools GB/T 3920-2008 Textiles - Tests for colour fastness - Colour fastness to rubbing GB/T 3922-2013 Textiles - Tests for colour fastness - Colour fastness to perspiration GB 4343.1 Electromagnetic compatibility - Requirements for household appliances, electric tools and similar apparatus - Part 1: Emission GB/T 4343.2 Electromagnetic compatibility requirements for household appliances, electric tools and similar apparatus - Part 2: Immunity GB 4706.1 Household and similar electrical appliances - Safety - Part 1: General requirements GB 4706.10 Safety of household and similar electrical appliances - Particular requirements for massage appliances GB/T 4745-2012 Textiles - Testing and evaluation for water resistance - Spray test method GB/T 4802.2-2008 Textiles - Determination of fabric propensity to surface fuzzing and to pilling - Part 2: Martindale method GB/T 4893.1 Test of surface coatings of furniture - Part 1: Determination of surface resistance to cold liquids GB/T 4893.2 Test of surface coatings of furniture - Part 2: Determination of surface resistance to wet heat GB/T 4893.3 Test of surface coatings of furniture - Part 3: Determination of resistance to dry heat GB/T 4893.4 Test of surface coatings of furniture - Part 4: Determination of adhesion by cross-cut GB/T 4893.7 Test of surface coatings of furniture - Part 7: Determination of surface resistance to alternation of heat and cold GB/T 4893.8-2023 Test of surface coatings of furniture - Part 8: Determination of resistance to abrasion GB/T 4893.9 Test of surface coatings of furniture - Part 9: Determination of resistance to impact GB/T 5711 Textiles - Tests for colour fastness - Colour fastness to drycleaning using perchloroethylene solvent GB 6675.2-2014 Safety of toys - Part 2: Mechanical and physical properties GB/T 6739-2022 Paints and varnishes - Determination of film hardness by pencil test GB/T 7573-2009 Textiles - Determination of pH of aqueous extract GB/T 8629-2017 Textiles - Domestic washing and drying procedures for textile testing GB/T 9286-2021 Paints and varnishes - Cross-cut test GB/T 10357.1 Test of mechanical properties of furniture - Part 1: Strength and durability of tables GB/T 10357.2 Test of mechanical properties of furniture - Part 2: Stability of chairs and stools GB/T 10357.3 Test of mechanical properties of furniture - Part 3: Strength and durability of chairs and stools GB/T 10357.4-2023 Test of mechanical properties of furniture - Part 4: Stability of storage units GB/T 10357.5-2023 Test of mechanical properties of furniture - Part 5: Strength and durability of storage units GB/T 10357.6 Test of mechanical properties of furniture - Part 6: Strength and durability of beds GB/T 10357.7-2013 Test of mechanical properties of furniture - Part 7: Stability of beds GB/T 12490-2014 Textiles - Tests for colour fastness - Colour fastness to domestic and commercial laundering GB/T 13667.1-2015 Steel bookshelves - Part 1: Bookshelf of single column and multi-column GB/T 17657-2022 Test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels GB/T 21196.2 Textiles - Determination of the abrasion resistance of fabrics by the Martindale method - Part 2: Determination of specimen breakdown GB/T 21294-2024 Testing methods of physical and chemical performance of garments GB/T 24430-2023 Test method for bunk bed structure safety GB/T 28202 Furniture industry terminology GB/T 29894 General method of wood identification GB/T 35273 Information security technology - Personal information security specification GB/T 36464.2-2018 Information technology - Intelligent speech interaction system - Part 2: Intelligent home appliances GB/T 38408-2019 Leather - Identification - Method of microscopy GB/T 39452-2020 Leather - Physical and mechanical tests - Tests for adhesion of finish GB/T 40264-2021 Textiles - Tests for colour fastness - Colour fastness to urine GB/T 43002-2023 Children's furniture - Quality inspection and quality judgement GB/T 43814-2024 General technical requirements for intelligent furniture QB/T 1952.1-2023 Upholstered furniture - Sofa QB/T 1952.2-2023 Upholstered furniture - Spring mattress QB/T 2385 Dark rare hardwood furniture QB/T 2537-2001 Leather - Tests for colour fastness - Colour fastness to cycles of to-and-fro rubbing QB/T 2724 Leather - Chemical tests - Determination of pH QB/T 2726 Leather - Physical and mechanical tests - Determination of abrasion resistance QB/T 3826 Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products - Neutral salt spraying (NSS) test 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 28202 and the following apply. 3.1 elderly oriented design furniture furniture designed according to the characteristics of the elderly or intended for use by them 3.2 access area part of the product that is accessible to the user's body in the functional position of the product under normal use 3.3 assistance device component or assembly designed to assist elderly individuals in changing their positions under load conditions, utilizing external forces such as rotation, assisted lifting, or displacement 3.4 driving device device used to realize the movement, functional regulation or shifting of furniture or assemblies through an electromechanical system (or some other system) 3.5 folding mechanism mechanism connected by hinges, rotary shafts, etc., which may produce a squeezing or shearing action during operation 3.6 hazardous protrusion protruding part or component within the access area that may cause injury during use 3.7 hazardous sharp edge edge of a part or component within the access area that may cause injury during use 3.8 hazardous sharp point part or component with a sharp end within the access area that may cause injury during use 3.9 hazardous contact corner part of the furniture where edges of contour parts or components intersect within the access area and less than 1,600mm from the standing plane, which may cause injury during use 3.10 shear and squeeze point gap that may cause injury to a body part when two components within the access area move relatively to each other (closed, opened, or folded) 3.11 assist handrail handles on a piece of furniture used to keep the body of an elderly individual balanced or support it when the elderly individual performs activities such as getting up, sitting down, or walking 4 Product classification 4.1 The elderly oriented design furniture may be divided by the main materials into: a) Wooden furniture oriented to the elderly; b) Metal furniture oriented to the elderly; c) Upholstered furniture oriented to the elderly; d) Other elderly oriented design furniture. 4.2 The elderly oriented design furniture may be divided into the following main categories: a) Chairs; b) Tables and desks; c) Cabinets; d) Single-layer beds; e) Sofas; f) Mattresses.
Contents Foreword III 1 Scope 2 Normative references 3 Terms and definitions 4 Product classification 5 Requirements 5.1 Grades 5.2 Dimensions 5.3 Appearance 5.4 Physical and chemical properties (Basic items) 5.5 Materials 5.6 Mechanical properties (basic items) 5.7 Safety performance (basic items) 5.8 Marking and instructions for use (basic items) 6 Test methods 6.1 Dimensions 6.2 Appearance 6.3 Physical and chemical properties 6.4 Materials 6.5 Mechanical properties 6.6 Safety performance 6.7 Electrical safety 6.8 Electromagnetic compatibility 6.9 Intelligent voice interaction function 6.10 Information security 6.11 Cautionary statement 6.12 Marking and instructions for use 7 Inspection rules 7.1 Classification of inspections 7.2 End-of-manufacturing inspection 7.3 Type inspection 8 Marking, instructions for use, packaging, storage and transportation 8.1 Marking 8.2 Instructions for use 8.3 Packaging 8.4 Storage and transportation Annex A (Normative) Requirements for furniture applicable to various ability levels of the elderly Annex B (Informative) Equilibrium moisture content of wood in various regions of China Bibliography
Referred in GB/T 44437-2024:
*GB/T 1043.1-2008 Plastics - Determination of charpy impact properties - Part 1: Non - instrumented impact test
*GB/T 1732-2020 Determination of impact resistance of coating films
*GB/T 1927.4-2021 Test methods for physical and mechanical properties of small clear wood specimens—Part 4: Determination of moisture content
*GBT2828.1-2012Sampling
*GB/T 3324-2017 General technical requirements for wooden furniture
*GB/T 3325-2017 General technical requirements for metal furniture
*GB/T 3326-2016 Furniture―Main sizes of tables,chairs and stools
*GB/T 3920-2008 Textiles—Tests for colour fastness—Colour fastness to rubbing
*GB/T 3922-2013 Textiles - Testing method for colour fastness to perspiration
*GB 4343.1-2024 Electromagnetic compatibility-Requirements for household appliances electric tools and similar apparatus-Part 1:Emission
*GB/T 4343.2-2020 Electromagnetic compatibility requirements for household appliances,electric tools and similar apparatus—Part 2:Immunity
*GB 4706.1-2005 Household and Similar Electrical Appliances – Safety - Part 1: General Requirements
*GB 4706.10-2008 Safety of household and similar electrical appliances - Particular requirements for massage appliances
*GB/T 4745-2012 Textile fabrics-Determination of resistance to surface wetting-Spray test
*GB/T 4802.2-2008 Textiles—Determination of fabric propensity to surface fuzzing and to pilling—Part 2: Modified Martindale method
*GB/T 4893.1-2021 Test of surface coatings of furniture—Part 1: Determination of surface resistance to cold liquids
*GB/T 4893.2-2020 Test of surface coatings of furniture—Part 2:Determination of resistance to wet heat
*GB/T 4893.3-2020 Test of surface coatings of furniture—Part 3:Determination of resistance to dry heat
*GB/T 4893.4-2023 Test of surface coating of furniture—Part 4:Determination of adhesion by cross-cut
*GB/T 4893.7-2013 Test of surface coatings of furniture—Part 7:Determination of surface resistance to alternation of heat and cold
*GB/T 4893.8-2023 Test of surface coatings of furniture—Part 8: Determination of resistance to abrasion
*GB/T 4893.9-2013 Test of surface coatings of furniture—Part 9:Determination of resistance to impact
*GB/T 5711-2015 Textiles―Tests for colour fastness―Colour fastness to drycleaning using perchloroethylene solvent
*GB 6675.2-2014/XG1-2022 Safety of toys―Part 2:Mechanical and physical properties, includes Amendment 1
*GB/T 6739-2022 Paints and varnishes—Determination of film hardness by pencil test
*GB/T 7573-2009 Textiles—Determination of pH of aqueous extract
*GB/T 8629-2017 Textiles―Domestic washing and drying procedures for textile testing
*GB/T 9286-2021 Paints and varnishes—Cross-cut test
*GB/T 10357.1-2024 Test of mechanical properties of furniture—Part 1:Strength and durability of tables
*GB/T 10357.2-2013 Test of mechanical properties of furniture—Part 2:Stability of chairs and stools
*GB/T 10357.3-2013 Test of mechanical properties of furniture—Part 3:Strength and durability of chairs and stools
*GB/T 10357.4-2023 Test of mechanical properties of furniture—Part 4:Stability of storage units
*GB/T 10357.5-2023 Test of mechanical properties of furniture—Part 5:Strength and durability of storage units
*GB/T 10357.6-2013 Test of mechanical properties of furniture—Part 6:Strength and durability of beds
*GB/T 10357.7-2013 Test of mechanical properties of furniture—Part 7:Stability of tables
*GB/T 12490-2014 Textiles--Tests for colour fastness--Colour fastness to domestic and commercial laundering
*GB/T 13667.1-2015 Steel bookshelves―Part 1:Bookshelf of single column and multi-column
*GB/T 17657-2022 Test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels
*GB/T 21196.2-2007 Textiles—Determination of the abrasion resistance of fabrics by the Martindale method—Part 2:Determination of specimen breakdown
*GB/T 21294-2024 Testing methods of physical and chemical performance of garments
*GB/T 24430-2023 Test method for bunk bed structure safety
*GB/T 28202-2020 Furniture industry terminology
*GB/T 29894-2013 The General Method of Wood Identification
*GB/T 35273-2020 Information security technology—Personal information security specification
*GB/T 36464.2-2018 Information technology—Intelligent speech interaction system—Part 2:Intelligent home appliances
*GB/T 38408-2019 Leather—Identification—Method of microscopy
*GB/T 39452-2020 Leather—Physical and mechanical tests—Tests for adhesion of finish
*GB/T 40264-2021 Textiles—Tests for colour fastness—Colour fastness to urine
*GB/T 43002-2023 Children's furniture—Quality inspection and quality judgement
*GB/T 43814-2024 General technical requirements for intelligent furniture
*QB/T 1952.1-2023 Upholstered furniture Sofa
*QB/T 1952.2-2023 Upholstered furniture-Spring mattress
*QB/T 2385-2018 Dark rare hardwood furniture
*QB/T 2537-2001 Leather—Tests for colour fastness—Colour fastness to cycles of to-and-fro rubbing
*QB/T 2724-2018 Leather - Chemical tests - Determination of pH
*QB/T 2726-2005 Leather - Physical and mechanical tests - Determination of abrasion resistance
*QB/T 3826-1999 Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products--Neutral salt spraying test (NSS)
Code of China
Standard
GB/T 44437-2024  Elderly oriented design furniture—General technical requirements (English Version)
Standard No.GB/T 44437-2024
Statusvalid
LanguageEnglish
File FormatPDF
Word Count17000 words
Price(USD)510.0
Implemented on2025-3-1
Deliveryvia email in 1~3 business day
Detail of GB/T 44437-2024
Standard No.
GB/T 44437-2024
English Name
Elderly oriented design furniture—General technical requirements
Chinese Name
适老家具 通用技术要求
Chinese Classification
Y80
Professional Classification
GB
ICS Classification
Issued by
SAMR;SAC
Issued on
2024-8-23
Implemented on
2025-3-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
17000 words
Price(USD)
510.0
Keywords
GB/T 44437-2024, GB 44437-2024, GBT 44437-2024, GB/T44437-2024, GB/T 44437, GB/T44437, GB44437-2024, GB 44437, GB44437, GBT44437-2024, GBT 44437, GBT44437
Introduction of GB/T 44437-2024
GB/T 44437-2024 Elderly oriented design furniture - General technical requirements 1 Scope This document specifies the classification, requirements, inspection rules, marking, instructions for use, packaging, storage and transportation of elderly oriented design furniture, and describes the corresponding test methods. This document is applicable to the design, manufacturing & machining, quality inspection, and quality assessment of elderly oriented design furniture. 2 Normative references The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 1043.1 Plastics - Determination of charpy impact properties - Part 1: Non-instrumented impact test GB/T 1732 Determination of impact resistance of film GB/T 1927.4 Test methods for physical and mechanical properties of small clear wood specimens - Part 4: Determination of moisture content GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 3324-2017 General technical requirements for wooden furniture GB/T 3325-2017 General technical requirements for metal furniture GB/T 3326-2016 Furniture - Main sizes of tables, chairs and stools GB/T 3920-2008 Textiles - Tests for colour fastness - Colour fastness to rubbing GB/T 3922-2013 Textiles - Tests for colour fastness - Colour fastness to perspiration GB 4343.1 Electromagnetic compatibility - Requirements for household appliances, electric tools and similar apparatus - Part 1: Emission GB/T 4343.2 Electromagnetic compatibility requirements for household appliances, electric tools and similar apparatus - Part 2: Immunity GB 4706.1 Household and similar electrical appliances - Safety - Part 1: General requirements GB 4706.10 Safety of household and similar electrical appliances - Particular requirements for massage appliances GB/T 4745-2012 Textiles - Testing and evaluation for water resistance - Spray test method GB/T 4802.2-2008 Textiles - Determination of fabric propensity to surface fuzzing and to pilling - Part 2: Martindale method GB/T 4893.1 Test of surface coatings of furniture - Part 1: Determination of surface resistance to cold liquids GB/T 4893.2 Test of surface coatings of furniture - Part 2: Determination of surface resistance to wet heat GB/T 4893.3 Test of surface coatings of furniture - Part 3: Determination of resistance to dry heat GB/T 4893.4 Test of surface coatings of furniture - Part 4: Determination of adhesion by cross-cut GB/T 4893.7 Test of surface coatings of furniture - Part 7: Determination of surface resistance to alternation of heat and cold GB/T 4893.8-2023 Test of surface coatings of furniture - Part 8: Determination of resistance to abrasion GB/T 4893.9 Test of surface coatings of furniture - Part 9: Determination of resistance to impact GB/T 5711 Textiles - Tests for colour fastness - Colour fastness to drycleaning using perchloroethylene solvent GB 6675.2-2014 Safety of toys - Part 2: Mechanical and physical properties GB/T 6739-2022 Paints and varnishes - Determination of film hardness by pencil test GB/T 7573-2009 Textiles - Determination of pH of aqueous extract GB/T 8629-2017 Textiles - Domestic washing and drying procedures for textile testing GB/T 9286-2021 Paints and varnishes - Cross-cut test GB/T 10357.1 Test of mechanical properties of furniture - Part 1: Strength and durability of tables GB/T 10357.2 Test of mechanical properties of furniture - Part 2: Stability of chairs and stools GB/T 10357.3 Test of mechanical properties of furniture - Part 3: Strength and durability of chairs and stools GB/T 10357.4-2023 Test of mechanical properties of furniture - Part 4: Stability of storage units GB/T 10357.5-2023 Test of mechanical properties of furniture - Part 5: Strength and durability of storage units GB/T 10357.6 Test of mechanical properties of furniture - Part 6: Strength and durability of beds GB/T 10357.7-2013 Test of mechanical properties of furniture - Part 7: Stability of beds GB/T 12490-2014 Textiles - Tests for colour fastness - Colour fastness to domestic and commercial laundering GB/T 13667.1-2015 Steel bookshelves - Part 1: Bookshelf of single column and multi-column GB/T 17657-2022 Test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels GB/T 21196.2 Textiles - Determination of the abrasion resistance of fabrics by the Martindale method - Part 2: Determination of specimen breakdown GB/T 21294-2024 Testing methods of physical and chemical performance of garments GB/T 24430-2023 Test method for bunk bed structure safety GB/T 28202 Furniture industry terminology GB/T 29894 General method of wood identification GB/T 35273 Information security technology - Personal information security specification GB/T 36464.2-2018 Information technology - Intelligent speech interaction system - Part 2: Intelligent home appliances GB/T 38408-2019 Leather - Identification - Method of microscopy GB/T 39452-2020 Leather - Physical and mechanical tests - Tests for adhesion of finish GB/T 40264-2021 Textiles - Tests for colour fastness - Colour fastness to urine GB/T 43002-2023 Children's furniture - Quality inspection and quality judgement GB/T 43814-2024 General technical requirements for intelligent furniture QB/T 1952.1-2023 Upholstered furniture - Sofa QB/T 1952.2-2023 Upholstered furniture - Spring mattress QB/T 2385 Dark rare hardwood furniture QB/T 2537-2001 Leather - Tests for colour fastness - Colour fastness to cycles of to-and-fro rubbing QB/T 2724 Leather - Chemical tests - Determination of pH QB/T 2726 Leather - Physical and mechanical tests - Determination of abrasion resistance QB/T 3826 Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products - Neutral salt spraying (NSS) test 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 28202 and the following apply. 3.1 elderly oriented design furniture furniture designed according to the characteristics of the elderly or intended for use by them 3.2 access area part of the product that is accessible to the user's body in the functional position of the product under normal use 3.3 assistance device component or assembly designed to assist elderly individuals in changing their positions under load conditions, utilizing external forces such as rotation, assisted lifting, or displacement 3.4 driving device device used to realize the movement, functional regulation or shifting of furniture or assemblies through an electromechanical system (or some other system) 3.5 folding mechanism mechanism connected by hinges, rotary shafts, etc., which may produce a squeezing or shearing action during operation 3.6 hazardous protrusion protruding part or component within the access area that may cause injury during use 3.7 hazardous sharp edge edge of a part or component within the access area that may cause injury during use 3.8 hazardous sharp point part or component with a sharp end within the access area that may cause injury during use 3.9 hazardous contact corner part of the furniture where edges of contour parts or components intersect within the access area and less than 1,600mm from the standing plane, which may cause injury during use 3.10 shear and squeeze point gap that may cause injury to a body part when two components within the access area move relatively to each other (closed, opened, or folded) 3.11 assist handrail handles on a piece of furniture used to keep the body of an elderly individual balanced or support it when the elderly individual performs activities such as getting up, sitting down, or walking 4 Product classification 4.1 The elderly oriented design furniture may be divided by the main materials into: a) Wooden furniture oriented to the elderly; b) Metal furniture oriented to the elderly; c) Upholstered furniture oriented to the elderly; d) Other elderly oriented design furniture. 4.2 The elderly oriented design furniture may be divided into the following main categories: a) Chairs; b) Tables and desks; c) Cabinets; d) Single-layer beds; e) Sofas; f) Mattresses.
Contents of GB/T 44437-2024
Contents Foreword III 1 Scope 2 Normative references 3 Terms and definitions 4 Product classification 5 Requirements 5.1 Grades 5.2 Dimensions 5.3 Appearance 5.4 Physical and chemical properties (Basic items) 5.5 Materials 5.6 Mechanical properties (basic items) 5.7 Safety performance (basic items) 5.8 Marking and instructions for use (basic items) 6 Test methods 6.1 Dimensions 6.2 Appearance 6.3 Physical and chemical properties 6.4 Materials 6.5 Mechanical properties 6.6 Safety performance 6.7 Electrical safety 6.8 Electromagnetic compatibility 6.9 Intelligent voice interaction function 6.10 Information security 6.11 Cautionary statement 6.12 Marking and instructions for use 7 Inspection rules 7.1 Classification of inspections 7.2 End-of-manufacturing inspection 7.3 Type inspection 8 Marking, instructions for use, packaging, storage and transportation 8.1 Marking 8.2 Instructions for use 8.3 Packaging 8.4 Storage and transportation Annex A (Normative) Requirements for furniture applicable to various ability levels of the elderly Annex B (Informative) Equilibrium moisture content of wood in various regions of China Bibliography
About Us   |    Contact Us   |    Terms of Service   |    Privacy   |    Cancellation & Refund Policy   |    Payment
Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: coc@codeofchina.com | QQ: 672269886
Copyright: Beijing COC Tech Co., Ltd. 2008-2040
 
 
Keywords:
GB/T 44437-2024, GB 44437-2024, GBT 44437-2024, GB/T44437-2024, GB/T 44437, GB/T44437, GB44437-2024, GB 44437, GB44437, GBT44437-2024, GBT 44437, GBT44437