Kev tiv thaiv corrosion, hnav tsis kam ntawm txoj siv sia conveyor rau cov menyuam tube.Nyob rau hauv cov thee mine, feem ntau ntawm cov dej sulfur piv yog loj, 4.5 hli tuab steel yeeb nkab rau cov menyuam, raj lub cev yog li 1 xyoo corrosion, luv tshaj tsuas yog li 5 lub hlis. Coking cog, sintering, pellet cog, conveying steel sl ...
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