(Round steel txuas saw chaw tsim tshuaj paus)
Forged davhlau tuav yog siv nrog puag ncig txuas & tiaj txuas saw sib dhos rau kev xa cov thee thiab lwm yam khoom siv mining tshwj xeeb. Cov ntaub ntawv yog siab Cr & Mo alloy steel, muab lub suab toughness thiab hnav lub neej.