NB/T 11464-2023 Broken-belt catcher for belt conveyer

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 985.1-2008 Recommended joint preparation for gas welding,manual metal arc welding,gas-shield arc welding and beam welding GB/T 3766-2001 Hydraulic fluid power—General rules relating to systems GB/T 3766-2015 Hydraulic fluid power—General rules and safety requirements for systems and their components 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 13384-1992 General specifications for packagings of mechanical and electrical products GB/T 13384-2008 General specifications for packing of mechanical and electrical product MT/T 98-2006 Testing specification for hydraulic support hoses and hose assemblies MT/T 459-1995 General technical specifications for hydraulic components used in coal mining machinery MT/T 776-2004 MT 820-2006 Coal mining belt conveyor technical specifications MT 820-1999 Underground coal mine belt conveyor technical specifications MT/T 459-2007 Coal mining machine hydraulic fluid power-General rules relating to hydranlic components GB/T 191-2025 Graphical symbols marking for handling and storage of packages