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Solid fuel-fired horizontal boiler for heating oil - with complete combustion and higher flame temperature due to less excess air
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Safety arrangement for boiler for heating a non-boiling heat transfer fluid
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Method and device for alternating heating and cooling of vulcanizing and pressing devices
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Method and device for the alternate pickling and cooling of vulcanizing and pressing devices
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Boiler system
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Method and device for alternating heating and cooling of presses
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