1. WW Grade Gum Rosin 2. Color: light yellow 3. Standard: GB/T ... 2003 4. Free Sample 5. Competitive price Product Name: Gum Rosin WW GradeType:Synthetic Fibers, Synthetic Resin and Pla...Grade ... glue, soap, synthetic resins, chewing gum and other chemical industries.Features:1) China original gum rosin2) Natural organic compound, mainly composed ... about 225kg/drum,18MT in the 20'FCL Gum Rosin WW Grade