Founded in 1987 to manufacture heavy duty pipes and accessories for the growing market in the Middle East hot and cold water pipe: Drinking Water & Heating Industrial Co., Ltd. Group of use: pipes for gas, cold and hot water in buildings, cities, agriculture, industry, and others. Lighter than water. The only pipe in the world with thermal memory. It returns to the original round model without losing any of the rust or corrosion properties. No her, no damage by salt or building materials