NB/T 11451-2023 Sieving and crushing transport device at coal minegate

GB/T 1184-1996 Geometrical tolerancing—Geometrical tolerance for features without individual tolerance indications GB/T 1348-1988 Spheroidal graphite iron castings GB/T 1348-2009 Spheroidal graphite iron castings GB/T 1348-2019 Spheroidal graphite iron castings 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 3836.3-2000 Electrical apparatus for explosive gas atmospheres—Part 3:Increased safety “e” GB 3836.3-2010 Explosive atmospheres—Part 3:Equipment protection by increased safety "e" GB/T 3836.3-2021 Explosive atmospheres—Part 3:Equipment protection by increased safety “e” 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 5680-1998 Austenitic manganese steel castings GB/T 5680-2010 Austenitic manganese steel castings GB/T 5680-2023 Austenitic manganese steel castings GB/T 9440-1988 Malleable iron castings GB/T 9440-2010 Malleable iron castings GB/T 11352-1989 Carbon steel castings for general engineering purposes GB/T 11352-2009 Carbon steel castings for general engineering purpose GB/T 12718-2001 High-tensile steel chains(round link) for mining GB/T 12718-2009 High-tensile steel chains(round link)for mining GB/T 13306-1991 Plates GB/T 13306-2011 Plates GB/T 24503-2009 Mining-drive sprocket for chains(round link) GB/T 24503-2024 Drive sprocket for chains(round link) for mining JB/T 9593.1-2015 Technical Conditions for Explosion-proof Three-phase Asynchronous Motors Used in Coal Mines Part 1: YBK3 Series Explosion-proof Three-phase Asynchronous Motors for Mine Underground (Frame Size 80-355) in Coal Mines JB/T 9593.1-2002 JB/T 9593.1-2002 Technical specification for three-phase asynchronous motors for coal mine explosion protection Part 1: YBK2 series three-phase asynchronous motors for coal mine underground (frame size 100-315) English translation result only MT/T 71-1997 Shackle type connector units for mining round link chain MT/T 99-1997 Flat type connector units for mining round link chain MT 99-1991 Mining round chain is connected with flat type link connector MT 113-1995 Flame and Electrostatic Resistance Test Method and Criteria for Polymer Products Used in Coal Mine Underground Workplaces MT/T 148-1997 Gearbox for chain conveyors MT/T 150-1997 General technical condition for packges of chain conveyors and stage loaders MT/T 154.1-1992 The guidelines for the preparation of coal mine electromechanical product models and management measures MT/T 154.1-2011 Coal mine electromechanical product model designation method Part 1: Guidelines MT/T 208-1995 Slipping conveyor hydraulic coupling MT/T 243-1991 Coal mine underground hydraulic coupling high moisture refractory liquid MT 243-1991 Coal mine underground hydraulic coupling fluid with high moisture and poor flammability MT/T 249-1997 Flameproof mining type double speed three-phase induction motors MT/T 249-2019 YBSD series mining dust-proof double-speed three-phase asynchronous motor MT 374-1994 Flame-retardant and anti-static safety test methods and judgment rules for rubber timing belts MT 374-2007 MT 374-2007 Fire-resistant Tri-rib Belt for Coal Mine MT/T 374-2008 Fire resistant V-belt for coal mine MT 478-1996 YBS series dust-proof three-phase asynchronous motor for scraper conveyor MT/T 478-2011 YBS Series Explosion-proof Three-phase Synchronous Motor for Conveyor Application MT/T 478-2025 YBS series flameproof three phases asynchronous motor for conveyer MT/T 661-2011 Common Technical Requirements for Electrical Equipment for Coal Mine Underground Workings MT/T 681-1997 Reducer for belt conveyor for coal mining—Technical condition MT/T 929