Coal mine machinery repair by brush platingI. Coal shearer, roadheader repairWe can repair the wear of the bearing on the rocker arm of the coal mining machine on site, as well as the scratches, wear and chrome plating on the hydraulic piston rod of the roadheader.II. Repair of hydraulic prop/bracketThe hydraulic prop is an important coal mine underground equipment, which directly affects the safe production of the coal mine. The working environment of the hydraulic prop is harsh, and corrosion and chrome layer peeling often occur, requi