The arụmọrụ ọkwa nke bolts eji maka ígwè Ọdịdị njikọ bụ 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9 na na. Bolts nke ọkwa 8.8 na n'elu bụ nke obere carbon alloy ígwè ma ọ bụ ọkara carbon ígwè na okpomọkụ-emeso (quenched, iwe), nke a na-akpọkarị elu ike bol ...
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