Maɓallin kariyar zafin jiki na injiniya wani nau'i ne na kariya mai zafi ba tare da samar da wutar lantarki ba, kawai fil biyu, ana iya amfani da su a cikin jerin a cikin da'irar kaya, ƙananan farashi, aikace-aikace mai fadi. Amincewa da aikin wannan mai karewa don yin kariyar da aka sanya a cikin gwajin motar, gabaɗaya ...
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