박닌성 중소기업연합회 소속 기업들을 방문했을 때 전문화된 에너지 효율 서비스가 더욱 필요한 것을 확인할 수 있었다.
When I visited the companies belonging to the Bac Ninh Provincial Small and Medium Business Association, it was confirmed that more specialized energy efficiency services were needed.