Ngesikhathi sokuphatha, ukuhlanganiswa, ukushisela, ukuhlolwa kwe-welding seam, kanye nokucutshungulwa kwamapuleti e-liner angaphakathi, izinto zokusebenza, kanye nezinsiza zamathangi ensimbi engagqwali, ukungcola okuhlukahlukene okufana namabala kawoyela, imihuzuko, ukugqwala, ukungcola, ukungcola kwensimbi okuncibilika kancane. ...
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