29171 -Acyclic polycarboxylates and their anhydrides, acyl halides, peroxides and peroxyacids, as well as their derivatives: HS code chinese tariffs

29171 -Acyclic polycarboxylates and their anhydrides, acyl halides, peroxides and peroxyacids, as well as their derivatives: HS code chinese tariffs

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291711 Oxalic acid and its salts and esters Oxalic acid and its salts and esters

29171200 --Adipic acid and its salts and esters --Adipic acid and its salts and esters

291713 Azelaic acid, sebacic acid and their salts and esters Azelaic acid, sebacic acid and their salts and esters

29171400 --Maleic anhydride --Maleic anhydride

29171900 --Other acyclic polycarboxylic acids and their anhydrides, acyl halides, peroxides and peroxyacids, as well as their derivatives --Other acyclic polycarboxylic acids and their anhydrides, acyl halides, peroxides and peroxyacids, as well as their derivatives