1,Insulator pipes 2,recycable material. 3.cheap price. 4.very good service. Features: · Material: high quality PE80 or PE100 · Sizes: 20mm to 50mm · Pressure Rating: 0.4MPa, 0.6MPa, 0.8MPa, 1.0MPa, 1.25MPa, 1.6MPa · Colors: blue, black or other colors on request · Connection: socket fusion joint, butt fusion joint, thermal fusion joint, flanged joint · Standard:GB/T 13663--2000 · Certification: ...