21. The ship had four steam boilers and a tall chimney on each side. 22. The recently founded Dampfkessel-Revisionsverein ( Steam Boiler Inspection Association ) regularly inspected both boilers. 23. Hence, steam boilers are used as generators to produce electricity in the energy business. 24. It seems to have been especially noteworthy for steam boiler fabrication, installation and maintenance. 25. The T�Vs were originally formed to inspect steam boiler installations. 26. The locomotives had saturated steam boilers and were considered attractive. 27. The Hartford Steam Boiler Inspection and Insurance Company was founded on June 30, 1866. 28. The company manufactured steam boilers and iron smoke stacks. 29. The vehicles were powered by a tubular steam boiler . 30. The substation, a steam boiler and smokestack were added.
