Silk yarn (other than yarn spun from silk waste) not put up for retail sale

Manufacture from: -natural fibres not carded or combed or otherwise prepared for spinning, -grege silk or silk waste, -chemical materials or textile pulp, or -man-made staple fibres, filament tow or waste of fibres, not carded or combed or otherwise prepared for spinning Or Printing or dyeing of yarn or monofilaments, unbleached or prebleached, accompanied by preparatory or finishing operations, twisting or texturizing not being considered as such, the value of non-originating material (including yarn), not exceeding 48% of the ex-works price of the product