1. Zofunika: Wamba mpweya structural zitsulo (Q zokolola mphamvu), apamwamba mpweya structural zitsulo (ndi avareji mpweya misa kagawo 20/10000), aloyi structural zitsulo (ndi avareji manganese misa kachigawo pafupifupi 2% mu 20Mn2), zitsulo zotayidwa (ZG230-450 zokolola zosachepera 230...
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