Iindaba zeshishini
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Ulwazi olomileyo, Zeziphi izinto ezichaphazela umgangatho we-welding?
Ubude bobude bobude berhasi L=[(10-12)d] L/min Ubude bocingo oluphumayo lombhobho wokuqhuba bubude bobude bobude bobude. Ifomula yeempirical jikelele ili-10-15 umphinda-phinde ngocingo idiameter L = (10-15) d. Xa umgangatho mkhulu, uba mkhulu kancinci. Ingcaciso...Funda ngokugqithisileyo