ISO uchungechunge ipayipi beveling umshini ngokuyinhloko isetshenziselwa ingcindezi ipayipi beveling ngaphambi Welding imishini ekhethekile, electric fire island for some site work space is limited pipeline maintenance, izici zokulungisa amanani amakhulu okuklama kanye nokukhiqizwa kwemishini yohlobo olukhethekile.
