... Powder Metallurgy Co., Ltd., has specialized in manufacturing items of sintered metal parts for 20 years. We have TS16949 certificate ... .) Pistons, Foot Valves, Rod Guide for Shock Absorbers or Dampings of Automobiles; 2.) Gears , Helical Gears, Bevel Gears, Double Gears, ... Saw, Cutter Seat for Mower;4.) Rotors for Oil Pump of Automobiles or Motorcycles;5.) Ratchet Wrench parts6.) Childre Safety ...