Ndi njira yodziwika bwino yomwe ingafotokozere mankhwala, makina opanga, kuwongolera mphamvu, mankhwala opatsa kutentha, chitsimikizo ndi zofunikira zina, zoyenera kuwongolera ntchito mu ntchito, ma valves, zokongoletsera. Astme A193 imatanthauzira zonse za si (metric) ndi maiyu a inchi.