We are offering gum rosin. Gum rosin ww grade is made of natural resin, its generalformulais c20h30o20. gum rosin is made of natural resin, its general formula is c20h30o2. gum rosin also called colophony, is a solid form of resin obtained from pines and some other plants, mostly conifers, produced by heating fresh liquid resin to vaporize the volatile liquid terpene components. It is semi-transparent and varies in color from yellow to black. At room temperature rosin is brittle, but it melts at stove-top temperatures. It chiefly consists of different resin acids, especially abietic acid. gum rosin is an important raw material for the manufacture of adhesive, coating, inks, rubber, soaps, paper etc. gum rosin of our packing details: in galvanized iron drum, 225kgs net each drum in kraft paper bag without liner, 25kgs net each bag in polypropylene woven bag, 25kgs net each bagdear sir or madam, good day! here you can buy varieties of chemicals at your pleasure. what's more, we can give you the best price for the products . at any time to provide quotation and product information. sincerely hope we can build relation in the near future!
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Yang (Tianjin Kaiyada Chemical Co. Ltd)
Room C2-39 Huawen Business Park No. 28 Shuichanqian Street Hebei District Tianjin China., China
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