I produced HDPE strip enhanced spiral bellows dedicated electric hot-melt zone, a product change from the previous traditional process, on a dedicated PE sheet, with a special hot melt integrated device, the special nickel-chromium alloy mesh with hot-melt compounding, molding from. Because PE sheet of high quality raw materials, and a certain proportion of EVA hot melt adhesive, using extrusion equipment, the composite nose raw Mixing and production, and corona treated, so when the molten solder can overflow a little jelly around material, plus Nichrome fine texture, arranged uniformly high heat per unit of time, can be more perfect and PE pipeline integration, confined obvious effect, to achieve good welding results. ? Uses: suitable for 600mm ~ 2400mm diameter spiral steel reinforced bellows interface connection. ? Characteristics: The pipe according to the characteristics of filament winding, the peak width is generally between 50 ~ 80mm, the tape is narrow, the incision along the pipe fusion welding. NOTE: In order to meet the needs of the pipeline project, often by way of outreach within the weld, which uses outside after a good use of portable extrusion welding torch along the cut in the inner wall of the welding. So good sealing performance, reliable joints, higher bonding strength