Cangzhou Datang Steel Pipe Co., Ltd.  Manufacturing extruded fin tubes, embedded G type fin tubes, High frequency welded spiral fin tubes, low fin tube, laser welded fin tubes, L / L L / K L fin tubes, Internally fin tubes, elliptical fin tubes, longitudinal fin tube, serrated fin tubes. All of thse are used for energy saving and environmental protection parts and equipment. Datang has 20 years of production experience, all our products have passed the water pressure test and the fin welding strength pull test. These fin tubes are 100% fully loaded to ensure quality.