CPVC pipes have excellent property in the following industries: Chemical processing, these system are capable of hot corrosive fluid transporting a wide variety of inorganic acids and bases ranging from 0～14 PH and working temperature can be 95℃; Water and wastewater treatment; potable water system; metal finishing; plating and treatment; pulp and paper; air pollution control; mining; earospace; textiles; hot water distribution; food and beverage processing; fire sprinkler piping. The large diameters of CPVC pipe is applied to high tension cable protection pipe for electric net improvement and municipal project.