Shrink-mouth piece for pipe weld corrosion coating designed with separate sets of fixed pieces, shrinking mending tape is made of radiation crosslinked polyolefin substrates and special hot melt adhesive sealing compound formed at high temperatures This new type of heat shrinkable mending materials with high mechanical strength, stable performance, anti-aging, corrosion-resistant chemical seal adhesive power, easy to operate and so on. Heat shrinkable fill the mouth with antiseptic industry called to live in the sleeve, the relative heat shrinkable sleeve is called dead muzzle terms, in addition to the main heat shrinkable mending tape, strip and comes with tabs, and fill the mouth with heat shrinkable to facilitate large-scale production, construction is also a lot easier. Features: (1) bonding a wide range: can be bonded with steel, PE, epoxy coatings. (2) corrosion resistance: can effectively shield a variety of media penetration, corrosion, resistant to aging, environmental stress cracking resistance, resistance to ultraviolet radiation performance. (3) high mechanical strength: high compressive strength, impact resistance, shear strength. (4) the use of a wide range of environments: can be applied within the range of -25 ~ 35 ℃. (5) no volatile, safety, energy conservation, environmental protection. (6) long service life. (7) excellent adhesive properties (8) shrink fast, simple construction, easy to operate, easy to install. 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