I-purlin yensimbi enamandla enziwe ngama-purlins (insimbi ye-C-section, insimbi ye-Z-section) njengento eyisisekelo.Ngemva kokucindezela, ukwenza imigodi, ukusika nokwenza, i-epoxy resin powder ishiswa kuqala ekushiseni okuphezulu ukuze icwiliswe futhi ilungiswe, bese icutshungulwa ngokuphulukisa...
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