Iyunithi yokuqala yomhlaba ye-acid pickling galvanized aluminium-magnesium ihlolwe ngempumelelo e-Hebei Taihang Iron and Steel.
Muva nje, iyunithi ye-asidi ehamba phambili emhlabeni jikelele yokukhetha i-aluminium-magnesium, ekhishwe yi-MCC Southern
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