It is an important raw material for the manufacture of paper,coatings, inks,rubbers,soaps, electronic industrial products,food g Performance characteristic:It is a kind of nutural resin,mainly composed of various kinds of resin acids,it can be dissolved easily in many organic solvents,and has special chemical activity. Specification: typeX/WWSoftening point(R&B),°C ≥76Acid number(mgKOH/g) ≥ ...