... liquid and water transportation for heat and cold water, gas, solar energy, heating, air-conditioning, air-compassion, oxygen, medical treatment, food ... wire and cable D) Conveying potable liquids in beverage factory E) Heating system of caliduct, under floor and wall, the ... Industrial pipelines of oil and cooling liquid H) Piping of solar energy water heater I) Pipes for vacuum absorption J) Piping ...