... conveying method of such medium as water,gas and petrolium, The reliability of pipenlines depends,to ... pipes,city water-pipes,sewage pipelines,reinforcing bars and auto engine parts.EPY2-I heavy duty ... medium as H2S,CO2,O2,acid,alkali,and salt,and can resist corrsion by underground salty water, ... assembly line with its simply working process and rapid curing and the workpiece doesn't need priming paint ...