Mine safety barrier for non-explosive atmosphere
Mine safety barrier for non-explosive atmosphere
Flameproof low-voltage plugs and sockets for coal mine
The technical norms for fire-prevention of mine gob areas by the inhibition of atonized sprays
Technical standerd of prevention and extingush of mine fire by air stopping
General technical condition of kerosene-inert gas for coal mine
General technical condition of high-ratio-foam fire extinguisher equipment for coal mine
General technical condition of high-ratio-foam fire extinguish agent for coal mine
General technical condition of the automatic devices for explosion suppression in coal mine
General technical conditions for underground radio-wave penetration instrument
Tchnical specifications of gsa drainage for coal mining
Determination of electrostatic potential in detonator production line
Determination of resistance on ground and mesa conducting statial electricity in detonator production line
Plough --Specification of type inspection
Plough -- Specification of routine inspection
General technical condition of roofbolter for coal mining
Portable air compressor in underground coal mines
Circle chain creeper
High level car dumper
Flameproof low-voltage plugs and sockets for coal mine
Coal mine oxygen determination generally technology condition
Technical condition of electro-chemical type oxygen instrumentation for coal mine
Electro-chemical type carbon monoxide instrumentation for coal mine
Tcchnical condition of electro-chemical type carbon monoxide instrumentation for coal mine
Technical specification of fire fighting by grouting in coal mines
Technical specification of fire fighting by nitroggen in coal mines
General technical conditions of inhibitor for coal mine fire prebention
Specifcation of non-destructive inspection method & acceptance for important bearing members of mine-use hoisting vessel
Series and parameters of electric control equipments for boom roadheaders
Reducer for belt conveyor for coal mining -- Technical condition
General technical condition of intrinsically safe portable microcomputer for mining
Charging racks for cap lamps
General technical condition of Rayleigh wave seismograph for mining