... 5.HS:830021000 1. Product details(1) Item name: Heavy-duty Ball Bearing Hinges with Zinc Plated (2) Material: Steel( ... welding component parts, metal stamping parts, punching parts, hardware for furniture, bracket parts, design and made of Moulds, and so ... These parts are used in Automotive, Electrical, Building, Furniture, Machine assembly, Computer, and Air industry. More specification pls do not ...