国产盗摄aaa美女们嘘嘘嘘_全部免费的毛片在线看蜜芽_国产青草视频免费在线观看_嗯啊用力呻吟激情视频_韩国一级淫片特黄特刺激_亚洲一级在线播放_国产成人h在线观看网站站_一区二区三区美女视频图片_日本人成视频免费观看_精品在线观看三级中文

您的瀏覽器版本太低，將不能正常瀏覽。請(qǐng)升級(jí) Internet Explorer或使用Google Chrome瀏覽器。
如果您在使用雙核瀏覽器，請(qǐng)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.