W kusho ukubhala, ukulingisa;I-C-CARBON STEEL carbon steel, A, b, kanye no-C ibonisa inani lamandla ohlobo lwensimbi ukusuka kokuphansi ukuya phezulu.I-WCA, i-WCB, i-WCC imele i-carbon steel, enokusebenza okuhle kokushisela namandla emishini.I-ABC imele izinga lamandla, i-WCB evame ukusetshenziswa.Impahla yepayipi...
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