Ngenxa yempembelelo ye-covid-19, kuye kwakho ukunqongophala kobonelelo lwetshiphu kwihlabathi liphela, okubangele ukonyuka kweendleko zeemveliso ezininzi, ukunyuka kwamaxabiso amaninzi, kunye nokuncipha koluhlu lwempahla.Iinkampani ezininzi zinokunqongophala okukhulu kweemveliso, ezinje ngeSiemens, Delta, Mitsubishi ...
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