Educational services, namely, offering courses of instruction on design, materials, fabrication, welding, inspection, examination, testing, certification, repair and alteration of objects such as pressure vessels, piping systems and storage tanks per recognized national and international standards

Educational services, namely, offering courses of instruction on design, materials, fabrication, welding, inspection, examination, testing, certification, repair and alteration of pressure vessels, piping systems and storage tanks per recognized national and international standards