... 3.High precision 4.Oem offered 5.Good sliding bearing Nantong Runfeng Powder Metallurgy Co., Ltd. is specializing ... compacting--sintering--resizing--cleaning--vacuum oiling--packing3.material:steel,copper,steel copper,bronze,alloy.4.produce equipment:200T,100T,60T, ... gear,spur gear,bevel gear,helical gear,sleeve,copper sleeve,sleeve bearing, bushing,bush,pulley,timing pulley,structural parts,powder ...