boiler insulation造句

• Asbestos was used by railroads and locomotive manufacturers as boiler insulation.
• The same company rebuilt a German 2-10-0 locomotive to new standards with modifications such as roller bearings, light oil firing and boiler insulation.
• The " Gorshkov " and other ships of the 1143.4 class had a history of multiple boiler failures, however Russian shipbuilders claimed that the source of the problem was the low-grade Chinese-made fire-bricks that were used in the boiler insulation instead of asbestos.