... net of each, Gum Rosin ww grade, resin Used in paper, ink, rubber, paints and varnish, various adhesives, glue, soap ... , synthetic resins.Features:1) China original gum rosin WW grade2) Natural organic compound ... , ink, rubber, paints and varnish, various adhesives, glue, soap, synthetic resins, chewing gum and other chemical industries WW Grade ...