... 4. Free Sample 5. Competitive price Product Name: Gum Rosin WW GradeType:Synthetic Fibers, Synthetic Resin and Pla... ... ), max0.020.030.04Usage: It is used in paper, ink, rubber, paints and varnish, various adhesives, glue, soap, synthetic resins, chewing ... gum and other chemical industries.Features:1) China original gum rosin2) Natural organic compound, mainly ...