"Ta nau'in samfurin (karfe na jabu, simintin ƙarfe), ta aikace-aikacen (ma'aikatar hakar ma'adinai, masana'antar wutar lantarki, masana'antar siminti, da sauransu), ta yanki (Arewacin Amurka, Turai, Asiya-Pacific, Latin Amurka), kasuwar niƙa ta shafa. ta COVID-19 za a yi.Binciken Amurka,...
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