HSN Code 690310 - Containing by weight more than 50 of free carbon

HSN Code (Classification)
Description
69(Chapter)Ceramic products
6903(Heading)Other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and sliding gates), other than those of siliceous fossil meals or of similar siliceous earths
690310(Sub-Heading)
Containing by weight more than 50% of free carbon