Roofing Screw, Drywall Screw, Blind Rivet manufacturer / supplier in China, offering Stainless Steel 304 316 A2-70 A4-80 Hex Single Head Female Standoff Pillar Stud Computer Motherboard Spacer Bolt Screws, 65mn Color Zinc Plated Spring Tube Clip Butterfly Pipe Clamps Circular Single Wire Adjustable Torsion Spring Band Type Clamp, 65mn Black Oxide Finished Spring Tube Clip Butterfly Pipe Clamps Circular Single Wire Adjustable Torsion Spring Band Type Clamp and so on.