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Chinese Standard Classification
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| Position: Search | valid to be valid superseded to be superseded abolished to be abolished |
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NB/T 11521-2024 General technical conditions of monitoring system for mine patrolinspection instrument
Issued on: 2024-05-24 Price(USD): 225.0 |
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NB/T 11522-2024 Tooling device for shearer and roadheader
Issued on: 2024-05-24 Price(USD): 270.0 |
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NB/T 11523-2024 5G communication base station for coal mines
Issued on: 2024-05-24 Price(USD): 420.0 |
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NB/T 11524-2024 General technical requirements of mine sprinkler robot
Issued on: 2024-05-24 Price(USD): 420.0 |
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NB/T 11525-2024 Technical conditions for pneumatic and electricdispatching monorail cranes
Issued on: 2024-05-24 Price(USD): 180.0 |
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NB/T 11526-2024 General technical conditions for coal mine micro-seismic monitoring system
Issued on: 2024-05-24 Price(USD): 285.0 |
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NB/T 11527-2024 Code of Practice for Gas Directional Drilling in Coal Mine
Issued on: 2024-05-24 Price(USD): 180.0 |
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NB/T 11528-2024 Technical Regulations of Wireless Measurement While Drilling and DeviceMaintenance in Coal Mine
Issued on: 2024-05-24 Price(USD): 180.0 |
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NB/T 11529-2024 Seismic-while-mining detection technology in coalmine working face
Issued on: 2024-05-24 Price(USD): 195.0 |
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NB/T 11530-2024 General specification of mining hydraulic concrete spraying manipulator
Issued on: 2024-05-24 Price(USD): 165.0 |
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NB/T 11531-2024 Determination of total phosphorus,ammonia nitrogen,permanganate index incoal mine water-Flow injection-spectrophotometry
Issued on: 2024-05-24 Price(USD): 210.0 |
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NB/T 11532-2024 Determination of multiple elements (potassium, sodium, calcium, magnesium,chromium, copper, zinc, barium, strontium, iron, aluminum, gallium, nickel,vanadium, germanium, boron, phosphorus, titanium, manganese) content incoal mine water by inductively coupled plasma emission spectroscopy
Issued on: 2024-05-24 Price(USD): 165.0 |
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NB/T 11533-2024 Determination of chloride,fluoride, bromide, sulfate, nitrate,nitrite and phosphate in coal mine water _on chromatography
Issued on: 2024-05-24 Price(USD): 135.0 |
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NB/T 11534-2024 General technical requirements for mining voltage and current sensors
Issued on: 2024-05-24 Price(USD): 345.0 |
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NB/T 11535-2024 Test method of rebound rate of shotcrete
Issued on: 2024-05-24 Price(USD): 255.0 |
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NB/T 11536-2024 Technical Specification for Underground Grouting and ReinforcementRetrofitting of Floor of mining above confined aquifer in Coal Mines
Issued on: 2024-05-24 Price(USD): 210.0 |
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NB/T 11537-2024 Code for detection and inspection of railcars in use in coal mines
Issued on: 2024-05-24 Price(USD): 210.0 |
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NB/T 11538-2024 The determination method of hydrogen sulfide content in coal seams
Issued on: 2024-05-24 Price(USD): 330.0 |
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NB/T 11539-2024 General technical requirements for mining level sensors
Issued on: 2024-05-24 Price(USD): 255.0 |
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NB/T 11540-2024 Methods for the determination of coal and rock abrasion resistance
Issued on: 2024-05-24 Price(USD): 135.0 |
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