Ga itatuwan shayi na shekaru daban-daban, hanyoyin dasawa na injiniyoyi suna buƙatar amfani da ciyawar shayi daban-daban. Ga matasan itatuwan shayi, an fi yanka shi zuwa wata siffa; ga itatuwan shayi balagagge, galibi ana yin shuki mara zurfi da dasa mai zurfi; ga tsofaffin bishiyar shayi, an fi yanka shi a sake yanke shi. Gyaran Haske...
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