Polyurethane insulated pipes feature low thermal conductivity and excellent heat insulation performance. The rigid polyurethane foam layer provides waterproofing, moisture resistance, and extremely low water absorption, while the high-density polyethylene outer protective layer offers high mechanical strength, corrosion resistance, and anti-aging properties. The entire structure is integrally molded with strong adhesion, ensuring tight bonding between the insulation layer and steel pipe without

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