Amaningi amahhala esikhundleni kwezintaba ezindala zikungabhekisele ukuba zibonakele amaphutha ngokushesha. Ukusuka kwamandla kunezinye eziphumulekileyo ngenqanawe yobukhula—sebenzisa iimedi ezindaweni futhi vumele kuwukho ukubaleka inkinga elincane. Amaphutha aphoqweni? Bhekele ukufuna izicatshulwa ezisetyenziswa ngezikheli zabo. Ngokusebenza kwisebe, amagreyde amancane amaningi njengesi304L ayiphathe ukubhukuda kwiindlela zakuhlanganiswa ngephandle komoya. Uma ucaciso alandelwayo, shicilele umculo wendawo ngokufanele ukukhathalwa imiphumela eyahlukene njenge-sulfur compounds. Yenza isifundo ngezikheli ezincedisiwe nokugcina amanye amadoda okunakelana nokuphatha kokuthi amahhala akhuliswe ngokuphi.