0 Old HSK word(s):


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Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual




Polyurethan, PU, DIN-Kurzzeichen: PUR (S, Chem) [ju4 an1 ji1 jia3 suan1 zhi3] 聚氨基甲酸酯