Features 1.Material: Random Polypropylene. 2.Size: full 16mm through 160mm availability. 3.Pressure Rating: 2.5MPa, or other nominal pressures available upon request. 4.Color: light gray, white or other colors available upon request. 5.Joint: joining pipe and socket fusion fittings by socket fusion joint. 6. Standard: GB/T 18742.3-2002 Advantages 1.High Temperature Resistance: the maximum sustained working temperature is up to 70 , the maximum transient temperature is up to 95 centigrade. 2.Heat Preservation: low thermal conductivity result in preserving heat. 3.Non-toxic: no heavy metal additives, would not be covered with dirt or contaminated by bacterium. 4.Low Installation Costs: light weight and ease of installation can reduce installation costs. 5.High Flow Capacity: smooth interior walls result in low pressure loss and high volume. 6.Longevity: more than 50 years under proper use.