Belt conveyors-Dimension of structure from idler sets to adjacent component parts-for coal mining
Technical condition about inflatable device for determinging initial velocityof gas emission from boreholes
General technical conditions of pressure balance chamber for mine fire control
Technical condition about the electronic instrumen determining gas desorption index with equating volume principle
Classification for flow temperature of coal ash
Classification for coal ash fusibility
Classification for Hardgrove grindability index of coal
Performance evaluation of washery thickeners
Classification for total moisture in coal
Test specification for hydraulic components used in shearer
Classification for volatile matter of coal
Vulcanizing repair tape for rubber sheathed mining cables Part 2:Rubber sheath repair tape
Vulcanizing repair tape for rubber sheathed mining cables Part1:Rubber insulation repair tape
Flameproof conversion swith for coal mine
Classifications of permeability for coal mass
Technical specification of leakage detection withSF6 tracer gas in roadways of coal mines
General spacifications for air door switching motion transduce in mine
Miner general protective clothing
Coal mine gas-proportioning device (pressure method) specifications
Steel thin-walled and reverse air door
Flow measurement method of pipe for gas drainage -measurement method of mean velocity tube flow transducer
Shearer-- Types and basic parameters
Shearer-- Types and basic parameters
Measuring method of coal and outburst risk while a cross-cut passing through a seam
General specification for the friction-driving controller of automatic spray
Method of determining the minimum oxygen content concentration for coal dust explosion
Method of determining the minimum explosion concentration for methane and coal dust mixtures
Hydraulic winches used emulsion
General technical condition of winding signalling for coal mine
Boom-type roadheader-general technical condition of crawler mechanism
Tcechnical specifications of closed crusher with internal air-circulation
Technical specifications of EPS -- 1/8 crushing and dividing combiner
Textile laminated fire resistant conveyor belting for coalmine
Textile laminated fire retardant conveyor belt use in coal mine
Drum shearer -- Method of type symbolization
Low-voltage vaccumA.C. circuit breaker for coal mine