Steel ncej kev tsim kho muaj qhov zoo hauv qab no piv rau cib, pob zeb thiab ntoo tsim.
1) Lub zog & Durability
Kev tsim steel ncej yog sib dua thiab muaj zog dua li cov khoom ntoo lossis pob zeb. Feem ntau hais lus, load-bearing steel qauv yog 30% mus rau 50% sib dua li cov qauv ntoo. Thiab cov qauv steel muaj zog thiab ruaj khov dua li cov qauv ntoo.
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