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
NB/T 11465-2023 Code for ground L-shaped roof directional well drainage gasin coal mining area $120.00 via email in 1~3 business day valid
NB/T 11466-2023 Technical specification for construction of vertical wells for surface gas extraction in mining areas $195.00 via email in 1~3 business day valid
NB/T 11468-2023 Technical requirements for mechanical reaming and penetration by hydraulicdrive $165.00 via email in 1~3 business day valid
NB/T 11469-2023 Measuring device of desorption gas content in normal atmosphere $195.00 via email in 1~3 business day valid
NB/T 11470-2023 Technical specification for high level directional long drilling in roof for gas extraction in coal mining face $180.00 via email in 1~3 business day valid
NB/T 11471-2023 Coal based Fischer - Tropsch synthesis liquefied petroleum gases $105.00 via email in 1~3 business day valid
NB/T 51023-2014 Technical requirements of solid backfilling materials free falling feeding system $164.00 via email in 1~3 business day valid
NB/T 51041-2015 The technical requirements of equipment selection and matching for ten-million-ton-level fully mechanized top coal caving mining face $130.00 via email in 1~3 business day valid
T/CI 057-2023 Technical regulations for the construction of geological disaster early warning information system for metal mines via email in business day valid
T/CNCA 009-2021 Specification of safety double prevention mechanism for coal mine $315.00 via email in 1~5 business day valid
T/CNCA 011-2021 Technical requirements for investigation of natural disaster bearing body in underground coal mine $315.00 via email in 1~5 business day valid
T/CNCA 012-2021 Technical requirements for hazard assessment of natural disasters in underground coal mine $165.00 via email in 1~3 business day valid
T/CNCA 014-2022 Modified magnesium slag-based cementitious material $225.00 via email in 1~3 business day valid
T/CNCA 015-2022 Modified magnesium-coal based soild waste backfill material $225.00 via email in 1~3 business day valid
T/CNCA 017-2022 $255.00 via email in 1~3 business day valid
T/CNCA 018-2022 $555.00 via email in 1~5 business day valid
T/CNCA 019-2022 Specification for withdrawal of intelligent fully mechanized mining face $165.00 via email in 1~3 business day valid
T/CNCA 030-2022 Monitoring method for the influence of groundwater resources induced by fully-mechanized coal face mining $225.00 via email in 1~3 business day valid
T/CNCA 031-2022 Technical requirements for investigation of natural disaster bearing body in opencast coal mine $315.00 via email in 1~5 business day valid
T/CNCA 032-2022 Technical requirements for hazard assessment of natural disasters in opencast coal mines $165.00 via email in 1~3 business day valid
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