1.Item:Heavy-duty Ball Bearing Hinges 2.Material:Steel 3.Size:Variety Types ... 5.HS:830021000 1. Product details(1) Item name: Heavy-duty Ball Bearing Hinges with Zinc Plated (2) Material: Steel(3) Size: 106 ... and primers, etc. 4. Our leading products: welding component parts, metal stamping parts, punching parts, hardware for furniture, bracket parts, design ...