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Tatsukin insulated copper-aluminum tube is an updated product with improved material and structure.It features by  anti condensation, easy installation and beautiful appearance. Insulation tub is 3 layers close cell cross-linked  30 times PE foam. Inner layer is 120˚C resistant seamless extrusion tube. It has better anti condensation charactor due to  smaller distance between insulation and copper tube. Outside embossed anti UV film could protect surface from scratching, deforming and aging so as to ensure its life time to over 8 years. Copper-Aluminum tube is a new developed product in resistance pressure welding, which is free of soldering material to keep cleanness of tube inside. The welding area is over 5mm, bigger than electrostatic percussing welding and friction welding，so as to solve the leackage problems.The product is flared ready to installation, which reduce the process time greatly.