Tswj
Xov Studs feem ntau yog cov cuab yeej muaj ntau yam - cov ntaub ntawv zoo, xaiv raws cov kev thov sib txawv hais txog lub zog, durability, thiab corrosion tsis kam. Carbon Steel sawv ua ib qho ntawm cov ntaub ntawv tshaj lij, tshwj xeeb yog nyob rau qib xws li 4.8, 8.8, thiab 10.9.