Izindlela zokususa ukugqwala ezivame ukusetshenziswa emikhunjini zihlanganisa ukususwa kokugqwala okwenziwa ngesandla, ukususwa kokugqwala ngomshini kanye nokususwa kokugqwala kwamakhemikhali.(1) Amathuluzi okususa ngezandla ahlanganisa isando sokukhipha(ikhodi ye-impa:612611,612612), ifosholo, i-deck scraper(ikhodi ye-impa 613246), i-Scraper Angle Ephindwe Kabili(i-impa code:613242), ste...
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