国产国产成人精品久久,青青久操视频,亚洲婷婷综合色高清在线,女女综合网,成人免费草草视频,亚洲色图第三页,亚洲视频在线观看网址

Water-White Hydrogenated Rosin

PRODUCTS > Water-white Hydrogenated Rosin > Water-White Hydrogenated Rosin

Water-White Hydrogenated Rosin

This series of products are refined from hydrogenated rosin or high-hydrogenated rosin that are eliminated impurities and the coloring radicals; Mainly used in solid or liquid solder flux, hot melt adhesive and as raw material of light-colored rosin resin.