Sigmax Pipe Industry specializes in HDPE water supply pipes, steel wire-reinforced polyethylene composite pipes, HDPE double-wall corrugated pipes, steel strip-reinforced polyethylene spiral corrugated pipes, high-density polyethylene plastic steel-wrapped drainage pipes,クラ管(high-density polyethylene-spiral-wound structural wall pipes type B), carbon corrugated pipes, power conduits, prestressed pipes for bridges, pool outlet pipes for rice fields, and related pipeline accessories. These products are widely used in urban water supply, drainage, and sewage projects, agricultural sprinkler, drip irrigation, and water-saving irrigation projects, water diversion, desertification control projects, oil pipelines, low-voltage weak electrical and communication optical cable sheaths, and more. They are products for municipal engineering, new district support, industrial and mining construction, and shantytown renovation. These products are characterized by light weight, corrosion resistance, low-temperature resistance, non-leakage, low cost, and long service life, and are recyclable and reusable, meeting the requirements of constructing a resource-saving society and developing a circular economy. They are alternative products to concrete pipes and cast iron pipes.