Zenziwe nge-carbon steel.Zenziwe #45 steel noma #60 steel.Zicutshungulwa ngomdwebo wocingo, ukufakwa kwe-annealing, ukwenza izipikili, ukucisha kanye nezinye izinqubo, zinzima.Umsebenzi wayo ukubethela kwezinye izinto eziqinile ezinye izipikili ezingakwazi, ngoba impahla ihluke kakhulu ezipikili ezijwayelekile, i-whick ingeyezinzipho ezikhethekile.Ubulukhuni bezinzipho bukhulu kakhulu futhi bufushane, futhi ikhono lokungena linamandla kakhulu.