... .process:mixing--compacting--sintering--resizing--cleaning--vacuum oiling--packing3.material:steel,copper,steel copper,bronze,alloy.4.produce equipment:200T,100T,60T,25T,15T ... .like transmission gear,spur gear,bevel gear,helical gear,sleeve,copper sleeve,sleeve bearing, bushing, bush,pulley,timing pulley,structural parts ...