... rosin also called colophony, is a solid form of resin obtained from pines and some other plants, ... rosin is an important raw material which used in manufacture of adhesive, coating, inks, rubber, soaps, paper etc. ... : in galvanized iron drum/225kg specifications NAMEGUM ROSIN WW GRADECHEMICAL FORMULAC20H3OO2APPEARANCETransparentCOLORPALE Yellow ANALYSIS RESULTITEMSTANDARDRESULTSOFTENING POINT(R B)CD76 ...