... new Iron Drums of 225kgs net of each, Gum Rosin ww grade, resin Used in paper, ink, rubber, paints ... , soap, synthetic resins.Features:1) China original gum rosin WW grade2) Natural organic compound, mainly composed of resins3) Possesses ... disproportionate rosin, polymerized rosin, hydrogenated rosin, for further use by its double bond reactionPacking:In galvanized iron drumAbout 225kg/drumConveyance ...