CNC Machining Parts, Metal Stamping, Casting Parts manufacturer / supplier in China, offering Anti-Rust M12 M16 304 Stainless Steel Hex Socket Head Flat Countersunk Allen Bolt Screw, M4 M5 M6 DIN7991 Standard Stainless Steel Countersunk Hexagonal Socket Screw for Machine, Custom Grade 4 Stainless Steel Carbon Steel DIN928 Flat Square Threaded Welding Weld Nuts and so on.