ENGINEERING, MANUFACTURING AND WELDING PROFESSIONALS, PARTNERING WITH YOU Ommeren Metaaltechniek BV (OMT) is an ISO 9001-2015 certified metal industry company, an ISO 3834-2 certified welding company that complies with the latest European and International standards. It specialises in the assembly and welding of metal, stainless steel and exotic alloys. We are a flexible and reliable partner and we will gladly help you find the right solutions.