He kaihanga waro nui a Handan Qifeng Carbon Co., Ltd. i Haina, neke atu i te 30 tau o ana wheako whakaputa, ā, ka taea e rātou te whakarato rauemi me ngā hua waro i roto i ngā momo mara maha. Ko te nuinga o ā mātou mahi he hanga i ngā Tāpiri Waro (CPC me te GPC) me ngā irahiko karāpeti me te tohu UHP/HP/RP; poraka karāpeti; paura karāpeti.