在线观看免费黄色A片_伊人久久在线视频观看_黄片三级在线观看_国产精品自拍视频分类_一区视频夫妻二级片一区二区_日韩成人小电影在线观看_欧美一级片免费视频在线播放_谁有毛片视频黄色视频在线免

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.