... The low carbon steel brake tube is supplied in single wall and double wall(Bundy Pipe). The products conform to ASTM ... line tubing, brake tubing, brake pipes, fuel lines, transmission oil cooler lines, air conditioning tube, power steering, condenser, compressor, evaporator etc. ... TestBend 180°in a Radius Three Times of the Pipe DiameterNo Crafk or Peeling After FlaringFlattening TestNo Crack After ...