久久Av无码精品人妻系列,亚洲码一区二区的,欧美一区二区午夜免费观看,这里只有精品国产,国产精品一区第二页在线,日韩在线一区二区三区成人,国产无maav

Diglycerol Ester of Rosin

PRODUCTS > Liquid Resin > Diglycerol Ester of Rosin

Diglycerol Ester of Rosin

The products are made from Rosin through esterification with Diglycerol ; Used in adhesives, solder flux, surface active agent, and coatings, etc.