Fasteners nau'in sassa ne na inji waɗanda ake amfani da su don haɗa haɗin gwiwa kuma ana amfani da su sosai. Ana amfani da fasteners a cikin masana'antu daban-daban, ciki har da makamashi, lantarki, kayan lantarki, injiniyoyi, sinadarai, ƙarfe, gyare-gyare, na'urorin lantarki, da dai sauransu, a cikin injina daban-daban, ...
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