This product is an efficient refrigerant under international advanced technology, adopts the imported pure materials, purity reach 99.98% and has strong refrigeration effect, do not content moisture and other impurities, protect refrigeration system from corrosion, and do not harm to the atmospheric ozone. It is the latest environmental protection refrigerant. This product should operate with the technician who hold the air-condition gas perfusion technical qualifications or under direction. Containing high-pressure liquefied gas, would cause bodily injury if not follow the instructions.