Takardar shaidar amincin kwal ba lallai ba ne sai dai in an yi nufin kayan aiki da kayan aiki don aikace-aikacen ƙasa. Don amfanin ƙasa, irin wannan takaddun shaida ba a buƙata.
Wannan ya haɗa da na'urori kamar masu yankan kwal, masu kan hanya, na'ura mai aiki da karfin ruwa goyon bayan, guda na'ura mai aiki da karfin ruwa props, crushers, masu ɗaukar bel, na'urar daukar hotan takardu, na'ura mai aiki da karfin ruwa tashoshin, aikin kwal, motsa jiki, masu kashe fashewa, masu aikin wuta, da magoya bayan gida. Don saitunan ƙasa, mahimman la'akari da aminci ya kamata su ƙunshi rigakafin gobara, kariyar fashewa, da juriya ga yanayin zafi.