Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Standard No. Title Price(USD) Delivery Status Add to Cart
MT/T 634-1996 Calculation Method of Air Volume in Coal Mine $344.00 via email in 1~3 business day abolished
NB/T 11261-2023 Code of practice for construction and quality acceptance of freezing holes in coal mines $270.00 via email in 1~3 business day valid
NB/T 11262-2023 Classification indexes and roadside support modes of gob-side entry in coal mine $195.00 via email in 1~3 business day valid
NB/T 11432-2023 Technical specification for coal mine gangue-based solid waste filling $255.00 via email in 1~3 business day valid
NB/T 11433-2023 Technical specification for short wall interval filling mining in coal mine $290.00 via email in 1~5 business day valid
NB/T 11434.1-2023 Paste filling in coal mine - Part 1: Technical requirements of goaf isolation in fully mechanized mining face $255.00 via email in 1~3 business day valid
NB/T 11434.2-2023 Paste filling in coal mine - Part 2: General technical conditions of pipe valves $345.00 via email in 1~5 business day valid
NB/T 11434.3-2023 Paste filling in coal mine - Part 3: Effect evaluation method $190.00 via email in 1~3 business day valid
NB/T 11434.5-2023 Paste filling in coal mine - Part 5: Technical requirements for cementitious materials $345.00 via email in 1~5 business day valid
NB/T 11446-2023 Technical requirements of mining roadway by roadway with continuous backfilling in coal mine $345.00 via email in 1~5 business day valid
NB/T 11454-2023 Specification for risk management of freezing sinking method $1020.00 via email in 1~5 business day valid
T/CNCA 029-2022 Specification for design of coal roadway rapid driving system based on bolter miner $225.00 via email in 1~3 business day valid
YBJ 218-1989 $340.00 via email in 1~5 business day abolished
YBJ 221-1990 $810.00 via email in 1~5 business day abolished
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