I-EN 1092-1 ngumgangatho waseYurophu ochaza iiflange kunye noqhagamshelo lweflange.Ngokukodwa, ichaza iimfuno zobungakanani, uyilo, izixhobo, kunye novavanyo loqhagamshelo lweflange.Lo mgangatho usetyenziselwa ikakhulu ukunxibelelana phakathi kweenkqubo zemibhobho kunye nezixhobo, ukuqinisekisa ireli...
Funda ngokugqithisileyo