超碰av在线-久久人人爽人人爽人人片-火影黄动漫免费网站-久久无码人妻精品一区二区三区-国产又大又粗又爽-扒丝袜-成人网站在线进入爽爽爽-自拍视频在线-91porn九色-日韩久久久精品-日韩视频久久-国产精品最新-精品欧美激情精品一区-亚洲成a人片77777精品-日韩不卡在线播放

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