... lowprice Features]DY-D4 is a kind of high-purity silicone annulus. Chemical name: Octamethylcyclotetrasiloxane; Formula: -[-(CH3)2SiO-]-4 ... , which is an important raw material of silicone products, colourless and odourless oily liquid. And it could ... 99.0[Application]The raw material of silicone oil (modified silicone oil),silicone emulsion,silicone rubber,silicone resin and so on, and it ...