蓄熱式轉底爐
(SRF) 直接還原
清潔冶煉技術

Direct reduction clean
smelting process of
regenerativerotary hearth
furnace

氫氣豎爐 (SHSF) 直接
還原清潔冶煉技術

Clean smelting process
of direct reduction of hydrogen
furnace

蓄熱式燃氣熔
分爐 (SRGS)
技術

Clean smelting
process of direct
reduction of hydrogen

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江苏七位数 20远8开奖结果走势图