Heat shrinkable sleeve / heat shrinkable sleeve / radiation cross-linked heat shrinkable sleeve pipeline corrosion / anti-corrosion heat shrink sleeve / gas pipeline wall heat shrinkable sleeve / municipal heat shrink plastic manholes. Commonly known as dead heat shrink sleeve, heat shrinkable sleeve layer is coated on the surface of steel epoxy primer, the middle layer of hot melt adhesive, the outer layer of improved radiation cross-linked polyethylene substrate. It is a composite of radiation cross-linked polyolefin substrate and special seals made of hot-melt adhesives, hot melt adhesives and specialty sealing polyethylene substrate, the steel surface and solid epoxy coating can form a good bond. Upon heating, heat shrink grassroots contraction layer melts, tight shrink coated fill the mouth, with the original pipeline coatings form a solid, continuous corrosion body. Corrosion resistance, abrasion resistance, impact resistance, UV resistance and photo-aging properties. Features - high mechanical strength, high resistance to aging. - Good resistance to environmental stress performance. - Excellent adhesive properties.