... Auto/motorcycle partsAuto/motorcycle engine parts, gearbox parts, shock absorber parts, synchromesh gear hub, pressure side plate, ... 2. P/M process: mixing--compacting--sintering—heat treatment--resizing--cleaning--vacuum oiling—packing3. Material: carbon steel, ... High precision within tolerance 0.02mm, 100% good quality with competitive price, good abrasion resistance, high density & hardness, high ...