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

Index name	Index
Appearance	White powder
Effective composition	≥34%

Usage: Even mixture of Protective agent SP and light calcium carbonate,, which after the process of high temperature heating, used in the rubber field processing, which could regulate the effective composition according to clients' requirement.

Packing: 25Kg Three kind of material kraft paper bag

  Previous product： Rubber antioxidant RD (TMQ)