... tubes, Water pipe b,Green Eco-friendly c,High-strength & Internal smooth Stainless steel lined pipe, Carbinox tubes, Water pipe, ... to the GB/T 17219-1998 standard.Good Anticorrosion Performance: Internal Layer of Stainless Steel or Copper Tube, The unique structure which ... High heat-resistant: Large scope of heat-resistant -40~150°C.Internal smooth: A glossy inner layer of the pipe, Reduce the friction ...