Bundy tube 1.Widely used:non-freon refrigerator, condenser, etc 2.ISO9001/14001/18001/CCS 3.Standard:ASTM,DIN,BS Bundy tube1.Widely used:non-freon refrigerator, condenser, etc2.ISO9001/14001/18001/CCS3.Standard:ASTM,DIN,BSPlating:Yellow Zinc,White Zinc,Copper and PE Size:4.76mm*0.7 mm,6.35 mm*0.7 mm,8 mm*0.7 mm,etc.The low carbon steel brake tube is supplied in single wall and double wall(Bundy ...