Pomvetsetsa mozama zosowa, zovuta, ndi zolinga za makasitomala awo, akatswiri aukadaulo olimba a alloy amatha kupereka chitsogozo ndi upangiri wokwanira, watsatanetsatane, komanso wolunjika.Timasanthula mozama mbali zosiyanasiyana monga ukadaulo, njira, ndi njira, kukonza mayankho makamaka kwa kasitomala aliyense.Katswiriyu kusanthula ndi makonda kumathandiza makasitomala kupeza zotsatira zabwino ndi zomwe akwaniritsa mu gawo la hard alloy.Chidziwitso chaukadaulo cha akatswiri chimakhala ngati maziko olimba a njirayi, kuwalola kukwaniritsa zofunikira zamakasitomala, kupereka mtengo wochulukirapo, ndikupereka chithandizo chopitilira patsogolo pakukula kwamakasitomala panthawi yonse yogwirizana kwanthawi yayitali.