rosin activated 中文意思是什麼
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Manufacturer and exporter of gum rosin, terpineol, pine oil, turpentine, activated carbon, forest flavour, fragrance and other chemical products
-生產石油樹脂石油溶劑化工原料塑料製品4大系列33個品種。 -
Activated rosin flux
活性樹脂釬焊劑
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