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Ukusebenza okuphezulu kwe-Rectangular Tube, Ikhwalithi ephezulu,
Ishubhu elingunxande luhlobo lwengxenye yesikwele engenalutho olukhanyayo olunodonga oluncane lwensimbi, eyaziwa nangokuthi amaphrofayili ensimbi akhiwe ngokubanda.Yenziwe ngomugqa ogoqekayo we-Q235 ogoqiwe noma ogoqeke ngokubanda noma ikhoyili njengesisekelo sensimbi, esakhiwe ngokugoba okubandayo bese sishiselwa ngamafrikhwensi aphezulu.Usayizi wekhona kanye nobuqotho bonqenqema beshubhu eyisikwele egoqiwe eshisayo enodonga oluwugqinsi olufinyelela noma lwedlule izinga lokumelana nokushisela okubandayo okwakhiwe ishubhu lesikwele ngaphandle kokuqina kodonga.
