GB/T 1149.4-2021 English Version, GB/T 1149.4-2021 Internal combustion engines—Piston rings—Part 4:Quality requirements (English Version) - Code of China

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GB/T 1149.4-2021 Internal combustion engines—Piston rings—Part 4:Quality requirements (English Version)
Standard No.:	GB/T 1149.4-2021	Status:	valid remind me the status change Email:
Language:	English	File Format:	PDF
Word Count:	9500 words	Price(USD):	285.0 remind me the price change Email:
Implemented on:	2021-10-1	Delivery:	via email in 1~3 business day

Standard No.:	GB/T 1149.4-2021
English Name:	Internal combustion engines—Piston rings—Part 4:Quality requirements
Chinese Name:	内燃机活塞环第4部分：质量要求
Chinese Classification:	J92 Engine body and moving parts
Professional Classification:	GB National Standard
Issued on:	2021-03-09
Implemented on:	2021-10-1
Status:	valid
Superseding:	GB/T 1149.4-2008 Internal combustion engines - Piston rings - Part 4: Quality requirements
Language:	English
File Format:	PDF
Word Count:	9500 words
Price(USD):	285.0
Delivery:	via email in 1~3 business day