... Roll/Pancake Specifications:Single wall bundy tube for condenser Outer diameter: 4.0mm-10.0mm. Wall thickness: 0. ... use:widely used in refrigeration,freezer etc;3)outer diameter:4.00mm,4.76mm,6.00mm,6.35mm ... 35*0.7mm,6. Type: Zinc coating outer side, Cu coating outer side, Cu coating both sides7. Packing: ... brake tube is supplied in single wall and double wall(Bundy Pipe). The products conform to ASTM ...