HDPE Krah Pipe (Spiral Wound Structural Wall Type B) is manufactured from premium PE100 resin with hot-wound technology, offering excellent SN8 ring stiffness and external pressure resistance. Featuring a smooth inner wall and reinforced wound outer structure, it is designed for buried municipal drainage, sewer, and stormwater systems. Equipped with both gasket (rubber ring) and electrofusion jointing, it ensures leak-free performance and superior settlement resistance. Available in DN200–DN1500, it is corrosion-resistant and long-lasting, making it an ideal replacement for concrete or ductile iron pipes.