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Data version: CNIPA Table of Similar Goods and Services, 2026 text (based on the 13th edition of the Nice Classification, NCL 13-2026, in force since 1 January 2026). Chinese terms, groups and numbers follow the official text; English and Spanish terms are taken from WIPO, while CNIPA-specific items (C numbers) carry reference translations, whose English was fully revised on 8 October 2026. NCL 13-2027 enters into force on 1 January 2027. Selected reference translations were revised on 13 October 2026.

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Class Group Item No. Chinese English
01 0101(一) 010092 氮 nitrogen
01 0101(一) 010413 工业用氧 oxygen for industrial purposes
01 0101(二) 010430 磷 phosphorus
01 0101(二) 010447 钾 potassium
01 0101(二) 010449 镨 praseodymium
01 0101(二) 010463 铼 rhenium
01 0101(二) 010466 铷 rubidium
01 0101(二) 010470 钐 samarium
01 0101(二) 010473 钪 scandium
01 0101(二) 010479 硒 selenium
01 0101(二) 010483 硅 silicon
01 0101(二) 010485 钠 sodium
01 0101(二) 010498 锶 strontium
01 0101(一) C010002 三氧化硫 sulfur trioxide
01 0101(二) 010493 硫 sulfur
01 0101(二) 010516 锝 technetium
01 0101(二) 010517 碲 tellurium
01 0101(二) 010519 铽 terbium
01 0101(二) 010532 铊 thallium
01 0101(二) 010534 铥 thulium
01 0101(二) 010552 镱 ytterbium
01 0101(二) 010553 钇 yttrium
01 0102(一) 010150 碳酸 carbonic acid
01 0102(一) 010185 盐酸 hydrochloric acid
01 0102(二) 010037 碱 alkalies

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