Determination for water solubles of activated carbon
Determination of saturated SO2 capacity absorbed of activated carbon
Determination of NH3 breakthrough capacity and breakthrough time of activated carbon
Determination of butane working capacity of activated carbon
Coal preparation plant-Evaluation method for performance of coal dewatering equipment
Hand-held pneumatic rotary drill in coal mine
Walled belt conveyor-Technical specification
The specifications of the rock communication apparatus without the cable in underground
The visual examine instrument of the borehole in mine
The general technical condition of the flameproof diesel engine for the mine
Flat type connector units for mining round link chain
The general technical condition of the flameproof diesel vehicle with the rubber wheeles for the mine
Conventional rail endless rope driven transport system
Technical conditions for mobile gas drainage pumping station of underground coal mine
Quick adapter with U pin and accessories for mine
Technical specification of polyurethane seal for power set legs and rams for coal mine
Roofbolt PDC bit in coal mine
Permissible powdery AN-TNT-FO explosive
Inspection specifications of hose and hose kit for powered support
Anchor shank tension apparatus in coal mine
Explosion proof vulcanizer for coal mine
The equipments specifications of the crag body stress test set by means of sleeve compression fracture method in mine
The specifications of the explosion-proof current capacity meter in mineral opened ditch
The specifications of the electric field perspective instruments with extra-low frequency in mine
single hydraulic bolting machine in coal mine
Hydraulic cutter for steel wire strands
Pulling device for prestressing anchorage in coal mine
Boom-type roadheader -- Electric control equipment
Non-destructive and fix quantity detecting method and determinant rule for tightwire on-line
Three-product dense-medium cyclone of coal with pressure feed
Description methodology of fracture in coal
Classification for germanium in coal
Classification for fluorine in coal
Classification for chromium in coal