Amabanga aphezulu webhawodi akhiqizwe ifektri yethu ahlanganisa i-metric 8.8, 10.9, 12.9, ASTM standard UNC Gr5 , 8 amamaki. Amantongomane anamandla ahlanganisa amamaki e-metric 8 kanye ne-10, kanye ne-ANSI yebanga lesi-5 ne-G8 elijwayelekile, konke okudinga ukwelashwa ngokushisa.