Gum rosin Specs:natural bright yellow color Ww garade Acid index(mg koh/g) : 170 180 Ash content: 0.02% max Liquefied degree: 70%c. Min Undissolved moisture Soap index: 156 Goods is covered in zinc tanks Net weight: 230 kg/ tank. 80 100 tanks per container.Under shipping marks : gum rosin of viet nam.
