pe gas Pipe 1.size:16*2.0,20*2.0,25*2. ... .over-lap welding 3.certification:ISO9001,CE 4.OEM pe gas Pipe1.size:16*2.0,20*2.0,25*2 ... and long using life 5) Low flowing resistance inside the pipe, scaling can rarely happen 6) The fluids cannot be contaminated ... can be prevented 8) Anti-static, and suitable for gas and fuel transportation 9) Can be bended or straightened without restriction gas Pipe