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 31 Endless transmission belts of trapezoid ...(Refer to 40103200 in HSC Book) Commodity Code Description 40 10 31 00 Endless transmission belts of trapezoid ...(Refer to 40103200 in HSC Book)