What's the H.S. CODE of silicone rubber?

As a global silicone rubber supplier, some friends will ask AYAAON about the HS code of silicone rubber. H.S code is also called customs code, some friends will mistake it as CAS. number. We generally use 39100000, 39100020, 39100029 and so on. Normally, the last mantissa is not very important, but 391 is same which representatives of the customs products of various countries for liquid silicone rubber, silicone gel, silicone elastomer.