Section 07 Plastics and articles thereof; rubber and articles thereof 40 Rubber and articles thereof 40 10 Conveyor or transmission belts or belting, of vulcanised rubber. 40 10 33 Endless transmission belts of trapezoid cross-section.(Refer to 40103400 in HSC BK) Commodity Code Description 40 10 33 00 Endless transmission belts of trapezoid cross-section.(Refer to 40103400 in HSC BK)