SPECIAL PRODUCTS
Gum Rosin X Grade
Gum rosins also named greek pitch or colophony resin, It is a kind of natural resin that are mainly composed of various kinds of resin acids, it can b
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Gum Rosin WW Grade
Gum rosin also named colophony rosin and has special chemical reactivity and can be widely used in in manufactures of paper, coatings, inks, rubbers,
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