EXCELLENT HEAT PRESERVATION INSULATION: The high density and closed structure of selected raw material has the ability of low thermal conductivity and stable temperature and has an isolation effect of hot and cold medium, so the inside of the water pipe will not be affected even if the weather is frozen outside NEAT APPEARANCE OF OUTER TUBE: The insulation material has a smooth surface with high elasticity, soft texture and better anti-resonance effect. Besides, it can also maintain a high-grade appearance even if not ceiling ECO-FRIENDLY MATERIAL: The environmental friendly raw material has no stimulation and pollution, no hazard to health and environment. Moreover, it can avoid the mold growth and mouse biting; The material has the effection of corrosion-resistant, acid and alkali, it can increase the life of using GOOD FLAME RETARDANT PROPERTIES: When burned by fire, the insulation material do not melt and resulting in low somke and do not make the flame spread which can guarantee the using safety; the material is determined as nonflammable material and the range of Using temperature is from -50 to 110 EASY TO INSTALL, EASY TO USE: It is convenient to install due to it is not need to install other auxiliary layer and it is just cutting and conglutinating. It will save the manual work greatly.