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The top documents tagged [natural gas flame]
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natural gas flame
Welding Inspection and Metallurgy. Preheating Some Important Points Preheating is defined as heating of the weld and surrounding base metal to a predetermined.
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Fossil Fuel By: Ember Wu, Andrea S, Brenda S, Ana R.
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FOSSIL FUELS Coal, Oil, and Natural Gas By: Andrea S.
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By: Niole Aguilar & Paula Lopez
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