Nta:
Ntse, Durable
High hardness koob, Forged nrog alloy tungsten hlau
Tsim los kom ceev nrooj kaw rau thiab tho lub tub yees txias
Txhaum lub tube tub yees thiab rov qab cov tub yees qub tam sim ntawd.
Ua los ntawm qib high-qib kub-kho alloy steel rau durability.