... Sample 5. Competitive price Product Name: Gum Rosin WW GradeType:Synthetic Fibers, Synthetic Resin and Pla...Grade:X, WW, WG, N, M ... paper, ink, rubber, paints and varnish, various adhesives, glue, soap, synthetic resins, chewing gum and other chemical industries.Features:1) China ... to produce resinate for further use7) In the producing of synthetic rubber and printing ink, resin acid is changed into ...