China · Heading· 2 subheadings· 0 codes

2809Diphosphorus pentaoxide; phosphoric acid; poly-phosphoric acids, whether or not chemically defined

Subheadings (6-digit WCO)

280910Diphosphorus pentaoxide→280920Phosphoric acid and polyphosphoric acids→
China HS 2809 · Diphosphorus pentaoxide; phosphoric acid; poly-phosphoric ac · Treayo