Explanatory notes
… ‑11, ‑12, ‑6,6, ‑6,9, ‑6,10 or ‑6,12 3908.90 ‑ Other This heading covers polyamides and copolymers thereof. … of non‑linear polyamides are the condensation products of dimerised vegetable oil acids with amines. Polyamides have a high tensile strength and resistance to shock. They also have excellent chemical …