Competitive Advantages of the product: 1. High Temperature Resistance: the maximum sustained working temperature is up to 70 Degrees Celsius, the maximum transient temperature is up to 95 Degrees Celsius. 2. Heat Preservation: low thermal conductivity which is only 1/1500 of brass pipe, and 1/250 of steel pipe. 3. on-toxic: no heavy metal additives would not be covered with dirt or contaminated by bacterium. 4. Corrosion Resistant: resist chemical matters or electron chemical corrosion. 5. Lower Installation Costs: light weight Standard: GB/T18472, ISO15874, DIN 8077 8088 Color: green, grey and white Length: 4m/pc or customerized