... . Product details(1) Item name: Heavy-duty Ball Bearing Hinges with Zinc Plated (2) Material: Steel(3) Size: 106*80 mm ... ), stainless steel, aluminum, brass, etc 2. Stamping, punching, bending, welding, threading, grinding, milling, machining, lathe, assembling etc. 3. Finishing: Anodizing, Powder ...