A SO CALLED BUTTERFLY DISK AS PART OF A BUTTERFLY VALVE. THE PRODUCT IS MADE OF ABS PLASTIC. THE INTENDED FUNCTION IS TO CONTROL THE FLOW OF AIR WITHIN A VALVE. SIZE - 110MM X 20MM. WEIGHT = .0495KGS.

GENERAL INTERPRETATIVE RULES 1 & 6 HARMONISED SYSTEM EXPLANATORY NOTES TO HEADINGS 8481