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PVP-K Homopolymer Series /Povidone(PVP K)，
PVP-A Copolymer Series / Copovidone(PVP/VA)，
PVP-P Insoluble pvp series: Crospovidone (PVP-P)，
2-Pyrrolidone， n-Methyl 2- Pyrrolidone，
Polyquaternium
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