Maƙasudin ƙarfe yana nufin kayan da aka yi niyya na ɓangarorin da ke ɗauke da makamashi mai ƙarfi waɗanda abin ya shafa. Bugu da kari, ta maye gurbin daban-daban manufa kayan (misali, aluminum, jan karfe, bakin karfe, titanium, nickel hari, da dai sauransu), daban-daban tsarin fim (misali, superhard, sa-resistant, anti-corrosi ...
Kara karantawa