MT/T 547-2025 General technical specification for mining concrete spraying machine

MT/T 547-2006 Rotor concrete spraying machine

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 3768-1996 Acoustics—Determination of sound power levels of noise sources using sound pressure—Survey method using an enveloping measurement surface over a reflecting plane GB/T 3768-2017 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Survey method using an enveloping measurement surface over a reflecting plane 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 10111-2008 Generation of random numbers and procedures applied to sampling inspection for product quality GB/T 13306-1991 Plates GB/T 13306-2011 Plates GB/T 20663-2006 Bladder type accumulators GB/T 20663-2017 Accumulators GB/T 20663-2026 Accumulators AQ 1043-2007 Mining Product Safety Mark Identification MT 113-1995 Flame and Electrostatic Resistance Test Method and Criteria for Polymer Products Used in Coal Mine Underground Workplaces MT 191-1989 The safety performance inspection specifications for rubber pipes used in coal mine undergrounds MT/T 191-1989 Testing specifications for safety performance of rubber hoses used in coal mine underground MT 244.2-1997 Car coupler of decauville for mine—Connecting bolt MT/T 244.2-2020 coal mine narrow-gauge vehicle connector connection plug insertion socket MT/T 244.2-2005 Car coupler of decauville for mine-Connecting bolt 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 387-1995 Method for Safety Measurement and Evaluation Rules of Coal Mine Narrow-Gauge Mining Vehicles MT/T 387-2007 Method for Safety Measurement and Evaluation Rules of Narrow-Gauge Mining Cars in 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 MT 818.9-1999 coal mine flame-retardant cable Part 1: Coal mine moving type flame-retardant soft cable Part 9: Coal mine moving light soft cable MT/T 818.9-2009 Coal mine electric cables - Part 9: Rated voltage 0.3/0.5kV mine-grade mobile lightweight flexible cables MT/T 827-1999 Common Technical Requirements for Coal Mining Machinery Hydraulic Systems