... Iron Drums of 225kgs net of each, Gum Rosin ww grade, resin Used in paper, ink, rubber, paints and varnish, ... China original gum rosin WW grade2) Natural organic compound, mainly composed of resins3) Possesses chemical activity when dissolved in many organic ... 6MT It is used in paper, ink, rubber, paints and varnish, various adhesives, glue, soap, synthetic resins, chewing gum and other chemical ...