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A study on the history, design, and maintenance of acid open-hearth (Siemens-Martin) steelmaking process
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#acid#open-hearth#steelmaking
Premium Content
Kislotali marten pechlarida po’lat ishlab chiqarish
4,000so'm
Betlar soni
11 taFayl hajmi
1.51 MBFayl turi
.pptx
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Elaka Qayumov
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