日韩精品免费在线观看,德国电影神医未删减完整版下载,久久影音先锋,汤唯梁朝伟那段电影未删减版,大尺度电影未删减播放菊豆,国产在线天堂,中文字字幕在线中文乱

您的瀏覽器版本太低，將不能正常瀏覽。請升級 Internet Explorer或使用Google Chrome瀏覽器。
如果您在使用雙核瀏覽器，請切換到高速 / 極速 / 神速 核心。
Crude Phenol
Product
2020-03-28
Product Presentation:
Production capacity over 7,000 tons/Y.Through coal tar distillation,extraction & refining process,we can steady produce and suppiy high-quality products.Top and stable quality.
 
 
Use:
Crude phenol is used to produce various chenical products (phenol,cresol,xylenol,etc)widely used as base materials for phenol resin,fire retardants,semiconductor sealer,and insulated varnish.