Recently, the quality issue of counterfeit ductile iron pipes for sewage has drawn wide attention in the pipe-casting industry. According to the national standard GB/T 26081-2022, sewers must use calcium aluminate cement mortar lining, which is highly corrosion-resistant and ensures a service life of decades.
However, some illegal manufacturers replace it with ordinary Portland cement lining to cut costs. This fake lining is white, weak in corrosion resistance, and shortens the pipeline life to only about 10 years, seriously threatening the safety of urban pipe networks.
As a professional foundry based in Jincheng, Jinchengtianyi Foundry Co., Ltd. strictly complies with national standards and refuses to produce or sell substandard products.
Our sewage pipes adopt qualified light yellow calcium aluminate cement lining.
External zinc coating meets the standard requirement of ≥200g/m².
We provide full-size ductile iron pipes for water supply, sewage, industrial wastewater, etc., with nationwide delivery and installation guidance.
Jinchengtianyi Foundry insists on quality first and is committed to providing safe and reliable pipe products for urban infrastructure construction.