Complete production lines for double wall copper brazed tube and single wall weld tube imported from Italy. Two complete production lines from Germany composed by a production line for Galvanized-Cr-passivated-PVF/Epoxy coating on double wall copper brazed tube and a production line for PA12 coating on Galvanized-Ti-passivated tube. Fully automatic bending machine, laser measuring device, CNC floating multi-position end forming machine are all imported from America and Italy which are world advanced high-tech level. Our products are in accordance with America Material Testing Association Standard ASTM254 and German VW auto standard VWTL-222. Our company has passed ISO9002 and ISO/TS16949: 2002 quality system certifications. We've got professional international trade knowledge to meet our customers' requirements