一级特级毛片免费不卡直接观看,欧美色婷婷天堂网站,亚洲男女H,日韩综合区,国产在线观看av直播,久色频网站在线一道本亚洲,美女自慰夜间福利

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。
Special Pitch with higher softening point
Product
2020-03-28
Product Presentation:
Production capacity over 1,000 tons/Y, Higher carbon yield,Higher softening point,Less bensopyrene,Higher mesophase content,Self-sintering and forms firm carbon-bonding
 
Use:
Casting agent for iron-making plant refractories,Repair spray for steel-making plant refractories,and used as base material for our Functional Graphite Powder(for negative electrodes of rechargeable Lithium ion battery)