Material: stainless steel, alumium ,bronze,iron, steel,non-ferrous…

Technic: casting, forging, welding, machining,punching,turning, bending, mortising, knurling, marking, engrave,grinding, lapping, stitching, cutting…….

Surfacetreatment: Galvanized,plating, painting, phosphating, oxidation, anodizing, nickelplating, chromium, anti-rust…