日本a级片中文字幕,久久久九色,伊人激情久久,天堂中文在线视频,国产精品国产三级国产在线观什,最新av在线播放,国产成a人无v码亚洲福利

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。
o-Phthalic anhydride
Product
2020-03-28
Product Presentation:
Production capacity over 250,000 tons/Y,High-quality raw oil for the production of carbon black.JZC(JFE) unique production method,assuring steady supply.Top and stable quality.
 
Use:
The reinforcement materrials added in tire and rubber oproducts to increase abrasive resistance are widely used in the production of carbon black.The CB oil produced by our company is processed into high-quality carbon black and then made into rubber prod