Material availableCold&Hot roll steel/Galvanized steel/Stainless steel/Aluminum alloy brass/copper/plastic/RubberSurface treatmentZinc/Zinc with Trivalent chomate/Chrome/Yellow zinc plated/HDG/power coating/Nickel/E-coating/ Equipment:5ton-500ton high speed stamping machine Milling machine/Drilling machine/Cuting machine/Latching machine/ Products processing:Cuting/Drilling/Threading/Electric Welding/Finish polishing/parts assebing/ Inspection: Coating thickness test/Roughness/Go/Ungo Gauge/Sault spray testing machine/Hardness test/ OEM available Door hinge/window hinge /furniture hinge/cabinet hinge/stainless steel hinge