主营业务： 138# glyceride resin 145# Pentaerythritol rosin resin Gum rosin(Indigenous method) Gum rosin(steam method) Gum turpentine Hydrogenated rosin Hydrogenated rosin glyceride Pentaerythrite Ester of Hydrogenated Rosin Polymerized rosin Rosin modified phenolic resin Turpentine heavy grade

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