DUAL GRIND NICKLE-TITANIUM WIRE MANDREL- THE FUNCTION OF THE MANDREL IS TO SUPPORT OUTER MEMBER TUBING DURING WELDING PROCESS. THE MANDREL IS INSERTED INTO THE OUTER MEMBER TUBING. ONCE THIS PROCESS IS COMPLETED THE MANDREL IS REMOVED. THIS IS A PROCESSING AID USED IN THE MANUFACTURING OF MEDICAL DEVICES (STENTS).THE MATERIAL COMPOSITION IS OF SUPERELASTIC STRAIGHT ANNEALED NICKEL-TITANIUM WITH A DARK OXIDE SURFACE. ITS NICKLE CONTENT IS >50%

1 AND 6 THE HARMONISED SYSTEM EXPLANATORY NOTES TO HEADING 7508; CH 75 NOTE 1 (b) (i)&(ii) THE TEXT OF CODES 7508, 7508 90, 7508 90 00;