I-HEBEI YUNAI NEW MATERIAL TECHNOLOGY CO.,LTD.yibhizinisi elikhulu lokukhiqiza i-carbon e-China elineminyaka engaphezu kwe-15 yesipiliyoni sokukhiqiza.Inkampani yethu ikakhulukazi ikhiqiza i-coke ye-petroleum e-calcined CPC&graphite petroleum coke GPC.