Iron Door Hinge Material: Iron Finish: SC,SSS,PSS,PVD ... Metal stamping parts,punched parts,precision stamping parts. Iron Door Hinge 1.Material:stainless steel, carbon steel, spring steel,iron ... tons, turret punch press, (laser) cutting machine, hydraulic bending machine, hydraulic shearer, welding machine, and test facility.4. Surface ... , painting, dichromate plating,copper wiredrawing. Iron Door Hinge