38151 -Carrier catalyst: HS code chinese tariffs

38151 -Carrier catalyst: HS code chinese tariffs

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38151100 --Supported catalysts using nickel and its compounds as active materials --Supported catalysts using nickel and its compounds as active materials

38151200 --Supported catalysts using precious metals and their compounds as active materials --Supported catalysts using precious metals and their compounds as active materials

38151900 --Other carrier catalysts --Other carrier catalysts