Heat shrinkable tape is heat shrinkable corrosion mending material specifically for underground or overhead weld steel pipe corrosion and design. Also known as lap up muzzle or mending tape. It consists of the main shrinking band fixed tablets, seals, and other parts. Heat shrinkable tape composite by radiation cross-linked high density polyethylene substrate and special seals made of hot melt through the substrate after irradiation with high mechanical strength, long life, corrosion resistance, aging resistance, resistance to environmental stress cracking, and special hot melt adhesive has strong bonding, sealing, easy operation and many other features, so this product is widely used in petroleum, natural gas, chemical, gas pipeline network and other projects in the steel pipeline corrosion mending. Heat shrinkable tape in the heating installation, radial contraction of the substrate in the same time, internal composite layer melted, tightly covered in make up mouth, together with the substrate into a solid shape in the pipeline corrosion body, with excellent The wear resistance, corrosion resistance, impact resistance and good resistance to UV and light aging properties. Features - high mechanical strength, high resistance to aging. - Good resistance to environmental stress performance. - Excellent adhesive properties. - Easy to use. GB / T23257-2009 standard heat shrinkable tape (sleeve) Thickness (mm): For diameter base layer ≤400 ≥1.2 ≥1.0> 400 ≥1.5 Executive Standard: SY / T4054-2003 and GB / T23257-2009 Model Specifications: HHWSΦ159 × 500 HHWSΦ219 × 500 HHWSΦ273 × 500 HHWSΦ325 × 500 HHWSΦ426 × 500 HHWSΦ508 × 500 HHWSΦ529 × 500 HHWSΦ610 × 500 HHWSΦ711 × 500 and above. . . . . . Maximum specification model: HHWSΦ1420 × 500 common width (mm): 400 450 500 550 600 650 700, a large quantity can call to order. Thickness (mm): 2.0 2.2 2.3 2.5 and above