... is between 35 and 45. The density of this product is from 0.91 to 1.05. It has ... and sterilization and disinfection.The new type of coupling agent is synthesized with special technologies.It could let the ... of mineral, engraft to the centric atom. So this coupling agent had several functions, joining, activation, dispersing, and lubricating. ... carbon black, alumina cream and so on. Borate coupling agent