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NF C68-152-2020 Cover plates and cover tapes for the protection and location warning of buried cables or bu...2023-11-18

DB12/T 497-2013 高压地下储气井定期检验与评定 High Pressure underground Storage Well Inspection and Evaluatio...2023-09-13

BS EN ISO 21225-1-2018 Plastics piping systems for the trenchless replacement of underground pipeline netw...2023-08-30

ASTM C891-2019 Standard Practice for Installation of Underground Precast Concrete Utility Structures2023-08-25

CSA Z341 SERIES-2018 Storage of hydrocarbons in underground formations (Fifth Edition)2023-08-23

DIN EN ISO 21225-2-2019 Plastics piping systems for the trenchless replacement of underground pipeline netw...2023-08-10

GB/T 3836.30-2021 爆炸性环境第30部分：地下矿井爆炸性环境用设备和元件 Explosive atmospheres—Part 30: Equ...2023-08-05

DIN EN ISO/IEC 80079-38/A1-2018 Explosive atmospheres - Part 38: Equipment and components in explosive atmo...2023-07-26

BS EN ISO 11298-3-2018 Plastics piping systems for renovation of underground water supply networks. Lining...2023-07-24

DIN EN ISO 11297-1-2018 Plastics piping systems for renovation of underground drainage and sewerage network...2023-07-14

BS EN ISO 21225-2-2018 Plastics piping systems for the trenchless replacement of underground pipeline netwo...2023-06-11

EN ISO 13263-2017 Thermoplastics piping systems for non-pressure underground drainage and sewerage. Thermop...2023-05-26

DIN EN ISO 21225-1-2019 Plastics piping systems for the trenchless replacement of underground pipeline netw...2023-05-17

GB 50388-2016 煤矿井下机车车辆运输信号设计规范 Code for design of underground locomotive vehicle transport s...2023-05-09

EN ISO 19225-2017Underground mining machines. Mobile extracting machines at the face. Safety requirements fo...2023-04-23

BS EN ISO 11299-3-2018 Plastics piping systems for renovation of underground gas supply networks. Lining wit...2023-04-19

BS EN ISO 19225-2017+A1-2019 Underground mining machines. Mobile extracting machines at the face. Safety req...2023-04-17

DIN EN ISO 13260-2018Thermoplastics piping systems for non-pressure underground drainage and sewerage - Test...2023-04-17

GB/T 18947-2003矿用钢丝增强液压软管及软管组合件Rubber hoses and hose assemblies for underground mining--Wire...2022-06-14

SY/T 6535-2002高压气地下储气井The underground storage well for high-compression gas2022-06-13

GB/T 18477.2-2011埋地排水用硬聚氯乙烯(PVC-U)结构壁管道系统.第2部分：加筋管材Unplasticized polyvinyl chloride (...2022-06-12

GB/T 3836.30-2021爆炸性环境第30部分：地下矿井爆炸性环境用设备和元件Explosive atmospheres. Part30:Equipment an...2022-03-14

GB/T 4652-2021地下矿用装岩机和装载机试验方法Loader for underground mining. Testing method2022-03-14

地下空间通风系统的优化2020-09-30

Dynamic determination reserves of the underground gas storage2020-09-13