Refer to the fuel oil piping drawing on page 55 of High Pressure Boilers. One of the two pressure relief valves in the fuel system is located at which one of the following numbered locations on the drawing?
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windy city oil field, karamay, xinjiang, China
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Laying plastic pipes drainage to drain the water around the house of drainage system
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Concrete cube or construction brick and trowel. Construction concept and mason
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