国产一区日韩二区欧美三区_成人做爰免费视频免费看_国产亚洲真人做受在线观看_欧美成人www在线观看_丁字裤少妇露黑毛

Organic bentonite:HY-708A

HY-708A is a kind of traditional highly purified organic bentonite, which is modified from quaternary ammonium salt. It is a kind of excellent anti-settling and thixotropic agent that used in solvent systerms. It is widely used oil-drilling, and low to medium polar solvents, such as paints and inks etc.


I want to send samplesOrganic bentonite:HY-708A
Topic:
* Name:
* E-mail:
Tel:
Message: