... certificate Powder metallurgy of iron and steel products for hardware tools Features: 1High density and good strength2Good abrasion ... fastener,rotors,pulley.Other sintered parts like bushings, sleeves, pistons, connecting rod, fasteners, nuts, rotors, stators, timing pulley, camshaft ... Valves, Rod Guide for Shock Absorber parts.9 Hardware tool partsHardware tool Parts and manual tool parts.10 ...