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Heat exchanger tube support
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Closure for heat exchanger
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Method and apparatus for helically welding strip material
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Apparatus for introducing addition agent into molten steel
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A method of brazing an elongated fin to a body
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Union for connecting conduits
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Apparatus for introducing addition agent into a melt
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Improvements in and relating to heat exchanger tubes
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Method and apparatus for helically welding strip material and helically finned tube made thereby
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Apparatus and method for vaporizing liquified gases
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Propelling of addition agents into melts
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Apparatus for discharging particulate material
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Union for connecting conduits
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A finned tube heat exchanger
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Heat exchanger
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Heat exchanger
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Apparatus for holding fin members during bonding
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Heat exchanger tube supports
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