... Product details(1) Item name: Heavy-duty Ball Bearing Hinges with Zinc Plated (2) Material: Steel(3) Size: 106*80 ... machining, lathe, assembling etc. 3. Finishing: Anodizing, Powder-Coating, Zinc-Plated, Chrome coated ,Nickel Plated ,Copper Plated, Rust-inhibiting ... oils, Electrophoresis, Paints and primers, etc. 4. Our leading products: welding component ...