Fun ọpọlọpọ awọn ọsẹ, ọja coke epo ni atunṣe to lagbara, awọn olupilẹṣẹ recarburizer ti o lagbara ni atilẹyin iye owo iṣelọpọ agbara, awọn alabaṣiṣẹpọ epo koke iranran ipese tẹsiwaju ni wiwọ, Abajade ni epo coke 'carburizer spot flux significantly dinku, awọn ile-iṣẹ iṣelọpọ aaye lagbara bulli…
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