Pipe clamp manufacturer / supplier in China, offering Heavy Duty Utt50 Carbon Steel Riser Clamp 1/2"-8", Black Painted/Galvanized, UL FM Approved for Vertical Pipe Mounting, High-Strength Carbon Steel Galvanized Beam Adaptor for HVAC Duct Support Frame Linkage Use, Structural Mounting Ductile Iron Qt450 Structure Attachment with Electro-Galvanized Protection and UL/CE Approval and so on.