Ua piʻi nui ka loaʻa kālā mai ke kūʻai aku ʻana o nā electrodes graphite UHP ma Kina i ka makahiki 2017-2018, ʻo ia hoʻi ma muli o ka piʻi nui ʻana o ke kumukūʻai o nā electrodes graphite UHP ma Kina. I ka makahiki 2019 a me 2020, ua emi nui ka loaʻa kālā honua mai ke kūʻai aku ʻana o nā electrodes graphite mana ultrahigh ma muli o nā kumukūʻai haʻahaʻa a me ka maʻi ahulau COVID-19. Ke nānā nei i mua, ma muli o ka hoʻōla ʻana o nā kumukūʻai electrode UHPA honua a me ke koi ma lalo mai ke kila umu arc uila, manaʻo ʻia e ulu ka loaʻa kālā mai ke kūʻai aku ʻana o nā electrode UHPA ma Kina i ka ulu makahiki hui o 22.5% i ka makahiki 2021-2025, a e hiki aku ka loaʻa kālā mai ke kūʻai aku ʻana o nā electrode UHPA ma Kina i 49.14 i ka makahiki 2023.
Ka manawa hoʻouna: Ian-15-2023