www.毛片,丁香八月婷婷,免费一级a毛片,国产91jk在线网站,久久精品国产99精品国产亚洲性色,www.三级A成人免费网站入口在线,18以下操屄视频无码免费

Methyl Ester of Gum Rosin

PRODUCTS > Liquid Resin > Methyl Ester of Gum Rosin

Methyl Ester of Gum Rosin

Rosin methyl ester is prepared by esterification of rosin with methanol; Used in adhesives, fluxes, surfactants, coatings, etc

blob.png