Izindaba Zemboni

Izindaba Zemboni

  • Seamless tube production history

    Umlando wokukhiqiza we-tube ongenamthungo

    Ngawo-1960 ngenxa yokwakhiwa kwesigayo esisha esinezintathu eziphakeme (esaziwa njengeTransval mill), lezi zindlela zithuthuke ngokushesha.Umshini omusha ubonakala ngokuzungeza ngokushesha itheku kuya ngemuva indawo yokujika iza ukuguqula i-Angle egingqikayo, ngaleyo ndlela ivimbela umsila kusuka ku-formi ...
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