Gum Rosin specification WW grade Color Sulphureum Softening Point 78.63 'C …
Gum Rosin specification WW grade Color Sulphureum Softening Point 78.63 'C Acid Value mg/KOH/g 168.73 Ethanol insoluable 0.024% Unsaponifiable matter 3.9% Ash 0.017% - Contact : Pls visit our website and send a quotation to the e mail there
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