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Jiangsu Shangyong New Material Co., Ltd,Website:http://www.jssy-chems.com, with professional pac-r factory, is a leading China pac-r manufacturer and supplier, we are able to offer you best price products.1. Regular grade polyanionic cellulose (PAC-R)Regular grade polyanionic cellulose referred to PAC-R. PAC is a kind of water-soluble cellulose ethers derivatives made from natural cellulose by chemical modification. As an important cellulose ether, PAC is appeared as white to yellowish powder or granule, non-toxic and odorless, easily soluble in both hot and cold water. PAC has more stable per