... AC, evaporators ,condensers ,heat pipe.We have cutting machine , so we can supply you 7m ,9m,12m ,or customers ... you have any problems about the tube , you can contact with us directly,Characteristic parameter tableGradesStandardsTensile strength σb ... treatment can not be strengthened and not be cut; can gas welding, welding and exposure to hydrogen atoms welding, brazing can not afford; vulnerable ...