欧美一区二区白浆,国产在线精品视无水印,小黄鸭av导航在线,国产免费一级在线视频

Appearance	White powder
Effective composition	30-65

Usage: Even mixture of Liquid SP and silica pigment, 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

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