The closed-cell rate of our polyurethane foam is around 92%. With its low thermal conductivity and low water absorption rates, coupled with the protective shell made of high-density polyethylene or glass fiber with excellent waterproof properties, it transforms the traditional practice of laying heating pipelines in a trench, which was akin to "wearing a wet cotton coat." This significantly reduces the overall heat loss of the heating pipelines, with the heat network loss at only 2%, well below the international standard requirement of 10%. It boasts excellent corrosion resistance, insulation properties, and a long service life. The buried保温管, with its polyurethane rigid foam insulation layer tightly adhered to the steel pipe surface, effectively blocks the infiltration of air and water, providing excellent corrosion protection. PPR piping with insulation

Junru Thermal Insulation Pipe for Hot Spring Water, 63*110mm, suitable for BOT projects.