CNC Machined Part, Bolts, Screws manufacturer / supplier in China, offering ASME B 18.16.6 Prevailing Torque All-Metal Type Hex Nuts, DIN906 Internal Drive Pipe Plugs - Conical Thread, SS304/Zinc Plated or Blackening, DIN916 Hex Socket Set Screws with Cup Point, Brass/Carbon Steel Blackening/SS304/SS316 and so on.