... 4OEM/ODM accepted 5ISO9001:2008 certificate Powder metallurgy sintered door lock parts Features: 1High density and good strength2Good ... Sprockets, Helical Gears, Bevel gears, Double Gears, Spur gear, Curved gear, Rack gear, Circular gear, Driving & driven gear, Medium ... for this line exclusively for shipment.Door-to-door shipment: We could arrange door-to-door shipment depending on your supply of ...