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DB37/T 3967-2020
Issued on: 2020-06-08 Price(USD): |
GB/T 13813-2001 Testing method and judging rule of safety to friction spakr of metallic material for coal mine
Issued on: 2001-03-19 Price(USD): 180.0 |
GB/T 13813-2008 Testing method and judging rule of safety to friction spark of metallic material for coal mine
Issued on: 2008-05-26 Price(USD): 120.0 |
GB/T 13813-2023 Testing method and judging rule of safety to friction spark of metallic material for coal mine
Issued on: 2023-05-23 Price(USD): 375.0 |
GB/T 39336-2020 Technical requirement of roadside bag filling for gob-side entry retaining with high-water material
Issued on: 2020-11-19 Price(USD): 190.0 |
GB/T 39337-2020 Technical requirement of fully mechanized bag filling mining with superhigh-water material
Issued on: 2020-11-19 Price(USD): 225.0 |
GB/T 39489-2020 Technical specification for the total tailings paste backfill
Issued on: 2020-11-19 Price(USD): 190.0 |
GB/T 39834-2021 Technical requirement of fully mechanized bag filling mining with paste
Issued on: 2021-03-09 Price(USD): 170.0 |
GB/T 39963-2021 Technical specification on C80~C100 concrete shaft lining applied in vertical freezing shaft
Issued on: 2021-03-09 Price(USD): 500.0 |
GB/T 39988-2021 Technical specification for total tailings paste production and disposal
Issued on: 2021-05-21 Price(USD): 165.0 |
GB/T 41043-2021 Coordinative development effectiveness evaluation indicator and method of coal and coalbed methane
Issued on: 2021-12-31 Price(USD): 255.0 |
GB/T 41163-2021 Specification for process design of enhancing coal seam permeability by water jet in coalmine
Issued on: 2021-12-31 Price(USD): 225.0 |
GB/T 41164-2021 Specifications technology for multistage fracturing in horizontal well within roof of broken-soft and low permeability coal seam
Issued on: 2021-12-31 Price(USD): 255.0 |
MT/T 1002-2006 Monitoring method and decision regulation for energy conservation of main drainage system for coal mine
Issued on: 2006-8-19 Price(USD): 130.0 |
MT/T 634-1996 Calculation Method of Air Volume in Coal Mine
Issued on: 1996-12-30 Price(USD): 344.0 |
YBJ 218-1989
Issued on: Price(USD): 340.0 |
YBJ 221-1990
Issued on: Price(USD): 810.0 |
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