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.