Chemical substances and preparations for use in industry, namely, synthetic precursor chemicals and intermediate chemicals for use in the manufacture of artificial and synthetic resins *, namely, polyamide or nylon, in particular polyamide 6, nylon 6, co-polymers * ; precursors and monomers all being industrial chemicals and chemical additives for the manufacture of artificial and synthetic resins; precursor compounds being industrial chemicals for manufacturing artificial yarns and threads f...