Flexible Solar Water Heater Pipe 1. Certification:ISO9001,CE 2. over-lap welding 3. color:any color 4. supply ... is generally applied in the liquid and water transportation for heat and cold water, gas, solar energy, heating, air-conditioning, air-compassion, oxygen, ... and cable D) Conveying potable liquids in beverage factory E) Heating system of caliduct, under floor and wall, the equipment for snow ...