欧美一级淫片免费午夜视频,黄色天堂网,久草一本,国产欧美日韩在线播放不了吗,国产精品第55页,最新在线观看av,午夜久久久精品一区二区三区

Your Current Position:  PRODUCTS > Resin series > Glycerol Ester of Disproportionated Rosin

Glycerol Ester of Disproportionated Rosin

Disproportionated rosin glyceride is prepared by esterification of disproportionated rosin with glycerin; They are used in pressure sensitive adhesive and coating industry respectively.