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During the Anti-Japanese War, Industry Started from the Loess Plateau
Mountains and Sea Beasts WillowHistorical285k Wordsongoing
What does it take to build a gun? Iron ore starting from raw materials, iron making, steel making, rolling, seamless steel pipe rolling, machining, rifling, 1. Raw material stage -Iron ore mining: open-pit/underground mining of hematite and magnetite, pre-processed by crushing, screening, magnetic separation, and sintering; equipment: excavator, crusher, screening machine -Coal coking 2. Iron and steelmaking stage -Blast furnace ironmaking -Open hearth steelmaking -Electroslag remelting 3.
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