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Qingdao Tianzhida High-Tech Industrial Development Co., Ltd. is a professional manufacturer specializing in products for large-diameter plastic drainage pipes, plastic-coated steel prefabricated directly buried heating pipes, and chemical containers, among other jointing products. Main products include: electrofusion bands, electrofusion sleeves, steel strip reinforced polyethylene spiral corrugated pipesspecialized electrofusion bands, HDPEhollow-wall winding pipe electrofusion bands, portable plastic extrusion welding guns, electrofusion welding machines,克拉管 welding machines, tensioners,heat shrink bands, plastic welding rods, plastic sheets, EVAhot melt adhesives, and other products.Professionalism leads to excellence, we look forward to achieving mutual success through cooperation……