Ọ bụ ifịk abara ma agadi-enye Ndụmọdụ ọtụtụ guzosie ike na-amalite na-elu ụlọ ọrụ, a ahịa / technology nyocha, na a nwere ihe karịrị iri afọ abụọ nke ahụmahụ na-ika mmepe, management ize / ụlọ ọrụ turnarounds, ihe mgbasa ozi na mmekọrịta ọhaneze.
