... &hardness 3high precision 4OEM/ODM accepted 5ISO9001:2008 certificate Best sintered lock parts in powder metallurgy Features: 1High density and good strength2Good abrasion ... tools5 Balance weigh, sprockets, ratchet, bushing, fastener,rotors,pulley.Other sintered parts like bushings, sleeves, pistons, connecting rod, fasteners, nuts, rotors, stators ...