... Co., Ltd. is specializing in powder metallurgy,oil bearing part,structural parts,gears(sprockets) and different parts used in ... --compacting--sintering--resizing--cleaning--vacuum oiling--packing3.material:steel,copper,steel copper,bronze,alloy.4.produce equipment:200T,100T ... gear,bevel gear,helical gear,sleeve,copper sleeve,sleeve bearing, bushing,bush,pulley,timing pulley,structural parts,powder ...