Medium/Heavy wall tubing with hot melting adhesive is mainly for city gas line pipe weld and steel pipe through the wall into the protective seal corrosion of household parts;Heat shrinkable sleeve is the overall structure, with a strong force of contraction,creep resistance,aging resistance,impact resistance,heat resistance and other excellent performance;The hot melt adhesive shear strength and peel strength, steel pipe, epoxy and PE coating adhesion and sealing;Chemical resistant, water immersion, resistance to water vapor permeability performance, service life and pipelines peers;Cable wall heat shrinkable tube:cable TV the transmit (CATV cable) with the inner wall of the heat shrinkable tube with hot melting adhesive for engagement with the connector of the cable transmission engineering protective outer thermal layer for mechanical protection within the hot melt adhesive layer used to sealed waterproof.