Ta yaya tsarin hatsi na No-Tooling-Cost (Edgewound) karkatattun zoben ya bambanta da da'irar da aka buga?

Ana samar da zoben riƙon karkace ta hanyar 'gewound' na murɗa waya mai zafin rai. Wannan tsari yana tabbatar da cewa ƙwayar ƙwayar ƙwayar ƙarfe ta bi kewaye da zobe. Sabanin haka, ana buga hatimi (DIN 471/472) daga karfen takarda, wanda ke haifar da kwararar hatsi da ke juyewa zuwa zobe a maki biyu. Gudun hatsin dawafi a cikin zoben karkace yana ba da ƙarfin ƙarfi da juriya, saboda babu 'rauni' kwatance don yaduwa. Bugu da ƙari, tsarin ƙetare yana kawar da ƙura, yana sa ya fi dacewa don kayan tsada kamar Elgiloy ko Hastelloy.