Gabatarwar Samfuri Waɗannan hoses an ƙirƙira su don ɗaukar nau'ikan kayan goge baki, gami da yashi, grit, siminti, da sauran ƙaƙƙarfan ɓangarorin da ake amfani da su wajen shirye-shiryen ƙasa da aikace-aikacen tsaftacewa. Baya ga ƙaƙƙarfan gininsu, an ƙera bututun yashi don rage ƙididdiga ...
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