Mea Hoʻolako ʻOihana Huakaona ʻOihana
HEBEI YUNAI HOU MATERIAL TECHNOLOGY CO.,LTD.he ʻoihana hana kalapona nui ma Kina me ka ʻoi aku o 15 mau makahiki o ka ʻike hana.Hoʻokumu nui kā mākou hui i ka calcined petroleum coke CPC & graphite petroleum coke GPC.