GB/T 12761-2025 Raise-boring machines

GB/T 12761-2010 Raise-boring machines

GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres—Part 1:General requirements GB 3836.1-2010 Explosive atmospheres—Part 1:Equipment—General requirements GB/T 3836.1-2021 Explosive atmospheres—Part 1:Equipment—General requirements GB 3836.2-2000 Electrical apparatus for explosive gas atmospheres—Part 2:Flameproof enclosure “d” GB 3836.2-2010 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures "d" GB/T 3836.2-2021 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures “d” GB 3836.4-2000 Electrical apparatus for explosive gas atmospheres—Part 4:Intrinsic safety“i” GB 3836.4-2010 Explosive atmospheres—Part 4:Equipment protection by intrinsic safety "i" GB/T 3836.4-2021 Explosive atmospheres—art 4:Equipment protection by intrinsic safety “i” GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB 4351-1997 General specifications for portable fire extinguishers GB 4351-2023 Portable fire extinguishers GB 4351.1-2005 Portable fire extinguishers—Part 1:Performance and construction GB 4351.2-2005 Portable fire extinguishers—Part 2:Requirements for seamless steel cylinders of portable carbon dioxide fire extinguishers GB/T 4351.3-2005 Portable fire extinguishers—Part 3:Regulations GB/T 7935-2005 Hydraulic fluid power—General requirements for hydraulic components GB/T 9065.1-2015 Hydraulic hose fittings—Part 1:Hose fittings with O-ring face seal ends GB/T 9065.2-2010 Connections for hydraulic fluid power and general use—Hose fittings—Part 2:Hose fittings with 24°cone connector ends GB/T 9065.2-2025 Connections for hydraulic fluid power—Hose fittings—Part 2:24° cone connectors GB/T 9065.3-2020 Connections for hydraulic fluid power—Hose fittings—Part 3:Flange ends GB/T 11352-2009 Carbon steel castings for general engineering purpose GB/T 13306-1991 Plates GB/T 13306-2011 Plates GB/T 13325-1991 Noise emitted by machinery and equipment—Guidelines for the preparation of test codes of engineering grade requiring noise measurements at the operator's or bystander's position GB 16423-1996 Safety regulations for metal and nonmetal opencast mines GB 16423-2006 Safety regulations for metal and nonmetal mines GB 16423-2020 Safety regulation for metal and nonmetal mines GB/T 17771-2010 Earth-moving machinery—Falling-object protective structures—Laboratory tests and performance requirements GB/T 17922-1999 Earth-moving machinery—Roll-over protective structures—Laboratory tests and performance requirements GB/T 17922-2014 Earth-moving machinery—Roll-over protective structures—Laboratory tests and performance requirements GB 20891 GB/T 37400.3-2019 Heavy mechanical general technical specification—Part 3:Welding parts MT 818.1-2009 Coal mine electric cables - Part 1: General provisions for mobile soft cables MT 818.1-1999 Flame-resistant Cable for Coal Mines - Part 1: General Provisions for Mobile Flame-resistant Soft Cables for Coal Mines MT 818.5-1999 Flame-resistant cables for coal mines - Part 1: Movable flame-resistant flexible cables for coal mines - Part 5: Movable soft cables with rated voltage of 0.66/1.14kV and below MT/T 818.5-2009 Coal mine electric cables - Part 5: Movable soft cables with rated voltage of 0.66/1.14kV and below