1) Size: 3/4" 2) PN: <0.5Mpa 3) Pipe ripple: annular wave 4) Wave distance: 4mm 5) Inner Diameter:18mm Outer Diameter:21mm 6)Wall Thickness: 0.2mm 7) Pipe material: SUS304 8) Bend times: 10 9) Length: 50m/roll 9) Execute standard: CSA 6.26-2005,EN 15266 Features: 1) To satisfy users individualized demand, it is buried in the wall, hidden spread, installed brightly and many kinds of installation way 2) Able to bear corrosives strongly, can be safely used over 50 years 3) With compensatory capability, avoiding gas leakage of earthquake and building subside 4) Bend easily, can pass and bend freely on the narrow space 5) Installing pipe after fitment, users can choose the time of installing conveniently 6) Safety: the length is optional unprecedented, middle part of pipe body have not fetch, reducing connective point 7) The fast socket of gas has particular function to protect flux and prevent operating by mistake 8) Safer use, more convenient, more beautiful 9) Special-purpose in transport pipeline of city gas, petroleum liquefied gas, natural gas, firedamp, format gas