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What is rosin?2018-08-03
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TAGS Gum Rosin Terpene phenol resin Vacuum plating coating resin Signpost marking paint resin Rosin modified phenolic resin Maleic resin Rosin Pentaerythritol Ester Glycerol ester of rosin Modified Rosin Alcohol-soluble Rosin Terpene resin

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