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Ngqo welding umbhobho
Isicelo: Umbhobho wesinyithi osetyenzisiweyo ubukhulu becala usetyenziselwa ubunjineli bokuhambisa amanzi, ishishini le-petrochemical, ishishini lamachiza, ishishini lamandla ombane, unkcenkceshelo lwezolimo kunye nolwakhiwo lwasezidolophini.
