国产三级片在线观看,亚洲色偷偷综合亚洲avyp,日本在线视频www色,中文字幕日本六区小电影

Shanghai YixiangChemical Co., LTD is a recognized globally specialized technology enterprise since 2014, for developing, manufacturing and marketing Polyvinylpyrrolidone (PVP/Povidone) series products and other pharmaceutical raw material. Full sets of equipments are in line with GMP requirements strictly. The quality of products is up to USP, CP and EP standard.

Polyvinylpyrrolidone (PVP/Povidone) series products are high performance, versatile polymer widely used in pharmaceutical raw material, cosmetics ingredients, beverages, synthetic resins, detergents, paints and other fields. Including PVPK Series, PVP copolymer and other VP / VA Copolymer Series, PVPP (cross-linked PVP), PVP-Iodine complex (Povidone-Iodine), NVP monomer, N-Methylpyrrolidone (NMP), 2-Pyrrolidone and other related pharmaceutical raw material.