... in powder metallurgy,oil bearings,structural parts,gears(sprockets) and different parts used in automobile and motorcycle.our ... manufacturer.2.process:mixing--compacting--sintering--resizing--cleaning--vacuum oiling--packing3.material:steel,copper,steel copper,bronze, ... , bushing, bush,pulley,timing pulley,structural parts,powder metallurgy parts,nut,auto parts,sintered parts,rotor and stator etc.