I Okuthengisa Amaphuzu wokuhlwanyela cylpebs ukugaya
(1) ubulukhuni okuphezulu: ebusweni nobulukhuni ekubunjweni yensimbi amabhola iwukuba HRC 58-65. Ukubekezelelana kokuqina core kanye ebusweni ubulukhuni ayikapheli 2HRC;
(2) Okuhle Impact ubunzima: nomthelela ukuqina-chrome amabhola ingaphezu 4J / cm²;
(3) okuphansi Broken Ukukala: langempela izinga eziphukile akazidluli 1%;
(4) Okuhle Wear nemithi: izinga egqoke ephezulu cast iron ibhola 30-50g / ithani e usimende umkhakha, 350-430g ezimayini zegolide ngisho wehlise kwezinye ezimayini zensimbi.