国产欧美日韩亚洲精品|无码AV专区丝袜专区|欧美精品一区二区免费看|精品日产1区2卡三卡麻豆|久久精品这里只有精99品|亚洲国产日韩精品二三四区|无码熟熟妇丰满人妻PORN|国产亚洲精品成人a v片麻豆

Use: This is an effective thermo-oxidative stabilizer in a wide range of solution polymerized,emulsion polymerized and thermoplastic elastomers including:BR,SBR,NBR,IR,SBS,and SIS as well as natural rubber.The antioxidant is effective both as a raw elastomer and compound stabillizer. Use of less, a good antioxidant effect .It is also effective in various adhesive and sealant applications. It belongs to the environmental protection antioxidant, has realized the rubber product by general to the environmental protection transformation.