... Solar Water Heater Pipe 1. Certification:ISO9001,CE 2. over-lap welding 3. color:any color 4. supply OEM PEX-AL-PEX pipeAluminum plastic pipe ... is generally applied in the liquid and water transportation for heat and cold water, gas, solar energy, ... erosion resistance, lightness, high mechanical intensity, high heat resistance, embitterment in low temperature and long service ...