We are offering gum rosinspecification : my s=k=y=p=e: alice.chen6011.specificationsappearance:transparent solidcolor:yellowsoftening point (r&b), , min:75acid value, (mgkohg), min:165alcohol insoluble substance , (%) , max:0.03unsaponifiable matter, (%) , max:5ash, (%) , max:0.03correspond to the standard glass color piece of rosin.