Duct Clamp, TV Bracket, Folding Shelf Bracket manufacturer / supplier in China, offering 200mm Dust Extraction Pipe System Stainless Steel Quick Release Rapid Lock Duct Pull Ring Connect Pipe Clamp Clip with Red Rubber, 400mm Flange Air Hose Clamp for Flexible Ducts Quick Release Duct Clamps, 350mm Adjustable Pipe Hose Clamp Quick Release Round Duct Clamp and so on.