Izingxenye zomshini zensimbi engagqwali ye-CNC azikwazi ukugqwala uma zisetshenziswa ezindaweni eziwuketshezi nezihwamuko ezingaphansi kuka-1200°F (650°C) futhi azikwazi ukumelana nokushisa uma zisetshenziswa ngaphezu kwaleli zinga lokushisa. Izinto eziyisisekelo zealloy zanoma iyiphi isisekelo se-nickel noma insimbi engagqwali yi-chromium (Cr), i-nickel (Ni), ne-molybdenum (Mo). Lezi zakhi zamakhemikhali ezintathu zizonquma izakhiwo zokusanhlamvu kanye nezakhiwo zokukhanda futhi zizoba usizo ekhonweni lokulwa nokushisa, ukuguga, nokugqwala. Ngenxa yezakhiwo zayo eziyingqayizivele zokumelana nokugqwala nokumelana nokushisa, izingxenye zemishini yensimbi engagqwali ye-CNC zithandwa ezinhlobonhlobo zezinhlelo zokusebenza, ikakhulukazi lezo ezisezindaweni ezinokhahlo. Izimakethe ezivamile zezingxenye zomshini wensimbi engagqwali zifaka uwoyela negesi, amandla oketshezi, ezokuthutha, amasistimu asebenza ngamanzi, imboni yokudla, ihadiwe kanye nezingidi, ezolimo...njll.