久久99国产精品一区二区,欧美日韩另类在线,婷婷四月开心色房播播网,收集最新中文国产中文字幕,亚洲综合激情六月婷婷在线观看,欧美一级淫片

Pentaerythritol Ester of Stabilized Rosin

PRODUCTS > Resin series > Pentaerythritol Ester of Stabilized Rosin

Pentaerythritol Ester of Stabilized Rosin

The stable rosin pentaerythritol ester is prepared by modifying and stabilizing rosin; Used in adhesive and rubber industry.

blob.png