Section 15 Base metals and articles of base metal 80 Tin and articles thereof 80 07 Other articles of tin 80 07 00 - - - Tin tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). 80 07 00 30 - - - Tin tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). Commodity Code Description 80 07 00 30 000 - - - Tin tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeve