Kukho iintlobo ezininzi ze-tube engenamthungo (smls) izixhobo zokuvelisa ngokwenkqubo yokuvelisa ityhubhu yentsimbi engenamthungo.Nangona kunjalo, kungakhathaliseki ukuba i-rolling, i-extrusion, i-top pressing okanye i-spinning ye-tube yensimbi engenamthungo yenkqubo yokuvelisa, izixhobo zokufudumeza ze-billet azinakwahlulwa, ngoko i-billet ...
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