1.zinc,copper, PVF coated 2.4.76-12.8*0.7 3.single/double wall 4.OEM >in coils/cut-to-length>OEM>usage:refrigeration,petrol pipe, powor steering>ISO 9001, TS16949The low carbon steel brake tube is supplied in single wall and double wall(Bundy Pipe). The products conform to ASTM A-254-91, A-512-91A and ASTM A214 and A513 in material and quality. Commonly sizes we supply to the client include 4. ...