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  • Patent certificate - a method for refining rubber-vulcanization accelerator 2-mercaptobenzothiazole

    Patent certificate - a method for refining rubber-vulcanization accelerator 2-mercaptobenzothiazole

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  • Patent certificate - rubber vulcanization accelerator N-tert-butyl-2-benzothiazole sulfenamide (NS) preparation method

    Patent certificate - rubber vulcanization accelerator N-tert-butyl-2-benzothiazole sulfenamide (NS) preparation method

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  • Oxygen oxidation method DM02

    Oxygen oxidation method DM02

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  • Oxygen oxidation method DM

    Oxygen oxidation method DM

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  • Tetrasulfide invention patent

    Tetrasulfide invention patent

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  • Antioxidant LO6

    Antioxidant LO6

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Factory add:Chemical Industry-Intensive Area,Puyang,Henan,China

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