... Tube 3.Galvanized brake Bundy Tube steel tubes&pipessteel tube galsrectangular steel tube 1.Galvanized Steel Tube 2. Steel brake Bundy Tube 3.Galvanized ... brake system5,Standard:ASTM,DIN,UNI,GB6,Material:low carbon steel tube7,Copper plated or Zinc plated8,Wall thickness:0.5mm ... ~0.7mm9Outer diameter:Φ3.18mm~Φ12mm Galvanized steel brake Bundy Tube1,Standard:ASTM,DIN,UNI,GB 2,Copper ...