... industrial & pressure vessels, columns, reactors, towers, heat exchangers, condensers, storage tanks, refrigerated storage tanks, lining equipments ... stainless steel. The pressure vessels, columns, reactors, towers, heat exchangers, condensers, storage tanks, refrigerated storage tanks, lining equipments, ... 3.ASME Certificate with Stamp S and Stamp U; 4.Approval of Manufacturer Certificate from Lloyds ...