天天摸日日舔,久久久精品成人免费看,国产精品玖玖玖在线观看,亚洲高清国产一区二区三区,国产欧美日韩精品综合,国产精品人伦久久,精品a视频

Usage:

The single ended active H of the single-ended polydimethylsiloxane can be directly grafted the high molecular or low molecular compound to reform a new type silicone product.It can be used to produce all kinds of special modified silicone oil by  hydrosilication  that introduces  polyether group,expoxy group,amino,long chain alkyl group, etc. The modified products will be used in personal care products,contact lenses,coating industry,polyurethane foam and agrochemicals adjuvant.

Instructions Download Center

RH-H222