Sima Pipe Industry specializes in HDPE water supply pipes, steel-reinforced polyethylene composite pipes, HDPE double-wall corrugated pipes, steel strip-reinforced polyethylene spiral corrugated pipes, high-density polyethylene plastic steel coiled drainage pipes,クラ管(high-density polyethylene spirally wound structural wall pipe type B), carbon corrugated pipes, power conduits, prestressed pipes for bridges, pond mouth pipes for paddy fields, and related pipeline fittings. These products are widely used in urban water supply, drainage, and sewage projects, agricultural sprinkler, drip irrigation, and water-saving irrigation projects, water diversion and desertification control projects, oil pipeline transportation, low-voltage弱electrical and communication optical cable sheath protection, etc. They are products for municipal engineering, new district infrastructure, industrial and mining construction, and shantytown renovation. These products feature light weight, corrosion resistance, low-temperature resistance, no leakage, low cost, long service life, and are recyclable, meeting the requirements of a resource-saving society and the development of a circular economy. They serve as alternatives to cement pipes and cast iron pipes.