... 4OEM accepted 5ISO9001:2008 certificate Powder metallurgy sintered metal parts for power tools Features: 1High ... lawn mower, brush cutter, hedge trimmer etc. 2 Sintered GearsGears, Sprockets, Helical Gears, Bevel gears, Double ... weigh, sprockets, ratchet, bushing, fastener,rotors,pulley.Other sintered parts like bushings, sleeves, pistons, connecting rod, fasteners ... installation on the buyer's part.