Ana amfani da bututun ƙarfe na murabba'i ko rectangular a cikin ayyukan gine-gine kuma ana amfani da su gabaɗaya don tallafin shigarwa bututu, samun damar wurin wucin gadi, ayyukan wutar lantarki, keel ɗin ado, da dai sauransu Lokacin da girman bututun ƙarfe na rectangular ya isa girma, muna ...
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