... , inks,rubbers,soaps, electronic industrial products,food grade ester gum,rosin ester resins etc. SpecificationsGum rosin ww grade is made ... It chiefly consists of different resin acids, especially abietic acid.Gum rosin is an important raw material for the manufacture of ... , coating, inks, rubber, soaps, paper etc.Gum rosin of our packing details:In galvanized iron drum, 225kgs net each drumIn kraft ...