Izingxenye zokufinyelela kwamandla kagesi
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Izesekeli zamandla kagesi
Imikhiqizo yezesekeli zikagesi. Siphakela imikhiqizo yabakhiqizi bemishini yamandla omhlaba, kufaka phakathi izesekeli zamandla esiteshi samandla kagesi aphezulu, imishini yokwakha izesekeli zezakhiwoIzimakethe ezinkulu zise-United States nase-United Kingdom. Besilokhu sithuthukisa izesekeli zamandla iminyaka engaphezu kwengu-20, futhi sithuthukise amakhulukhulu wemikhiqizo yezesekeli zamandla ngezinto ze-aluminium kanye ne-ductile iron.Surface treatment ihlanganisa i-zinc plating, i-hot-dip galvanizing, ...
