Metal OEM Parts, Aluminum Parts, CNC Machining Parts manufacturer / supplier in China, offering Adjustable Fixing Bracket Greenhouse Tube Clamp Fittings Size 1/2 3/4 and 1 Inch Key Clamp Pipe Fitting Size, Hm Lifting Socket Fixing Insert Precast Concrete Socket, Pipe Clamp Fittings 1/2\" Steel Pipe Key Clamp with Round Head Casting Technics and so on.