R Symbol No. 9982
National Board of Boiler and Pressure Vessel Inspectors Certificate of Authorization to apply the “R” Symbol No. 9982 to Boilers and Pressure Vessels – Metallic Repairs And /Or Alterations At Field Sites.
National Board of Boiler and Pressure Vessel Inspectors Certificate of Authorization to apply the “R” Symbol No. 9982 to Boilers and Pressure Vessels – Metallic Repairs And /Or Alterations At Field Sites.