Spherical plain bearings for mining
Low voltage AC soft-starter for coal mine
Prestressed anchorage in coal mine
Determination of thermal stability of industrial briquette
The examinatorial specification of variable speed fluid couplings for coal mining
Boom-type roadheader -- General technical conditions of loading mechanism
The types and parameters for coal mining low pollution flameproof diesel trapped-rail locomotives with rack and adhesion drive
The types and parameters of rubber tire battery-powered locomotives for underground coal mine
Electronic digital display convergence device
Determination of apparent relative density and porosity of industrial briquette
Determination of clinkering property of industrial briquette
Sample preparation of industrial briquette
Sampling for industrial briquette
Solid woven fire resistant coneyor belting for coalmine
Solid woven fire resistant conveyor belting used in coalmine
Hydraulic nuts and high-strength fasteners for coal mining machinery
Technical conditions of brakes for downward belt conveyors for coal mine
Cap lamp bulb
Boom-type roadheader -- The design guidelines for crawler mechanism
Rack for chainless haulage system -- Part 1: Track chain for chainless haulage system
Rack for chainless haulage system Part 2:type and size of rack support for chainless haulage system
X series jig weith air chamber under the bed
Flameproof mining motor vibertory machine
Flameproof multifunction lamp-ring signal device for coal mine
Rotary drill rod used for coal mining roofbolter
Welded drill rod and bit for low-compressive strength rock
General technical condition of pneumatic rock drill used in coal mine
Motor used in electric bolt-hole drill for coal mine
Extensible belt conveyors for coal mine
Technical conditions of hydraulic cylinder for coal mining and tunneling machinery
Information transmission device for coal mine
General standard of electrical survey in coal
Seismic exploration general standard in coal and coalbed methane
Code of equipment information for coal geology
Guidelines for quality control in coal laboratory