超短裙暴露羞耻h/国产真实生活伦对白/亚洲成人99/大美香蕉伊在看欧美

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Protective agent SP-C


Molecular formula:
Structural formula:

Technical index :
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




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