亚洲伊人久久综合影院 ,avtt天堂网人妻系列,国产在视频线精品视频,六十路丰满熟女av,亚洲毛片αv无线播放一区,国模杨依粉嫩蝴蝶150P,亚洲国产成人精品福利无码,亚洲成人图库,97人人添人人澡人人澡人人澡,国产精品黑色丝袜在线观看

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.