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2. Steckel mill - Wikipedia

   en.wikipedia.org/wiki/Steckel_mill

   A furnace is provided in both sides of the mill, which covers the mandrels each in one side upon which the slab is rolled after every complete pass. Output from Steckel mill varies from 1 to 2 mm. A cutter mechanism is also provided in this mill to cut the irregular head and tail of the incoming slab.

3. Coefficient of performance - Wikipedia

   en.wikipedia.org/wiki/Coefficient_of_performance

   Test results of the best systems are around 4.5. When measuring installed units over a whole season and accounting for the energy needed to pump water through the piping systems, seasonal COP's for heating are around 3.5 or less. This indicates room for further improvement.

4. Open-hearth furnace - Wikipedia

   en.wikipedia.org/wiki/Open-hearth_furnace

   Open hearth furnace workers at the Zaporizhstal steel mill in Ukraine taking a steel sample, c. 2012 Tapping open-hearth furnace, VEB Rohrkombinat Riesa, East Germany, 1982. An open-hearth furnace or open hearth furnace is any of several kinds of industrial furnace in which excess carbon and other impurities are burnt out of pig iron to produce ...

5. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Air-side economizers also use outside air to condition spaces, but do so using fans, ducts, dampers, and control systems to introduce and distribute cool outdoor air when appropriate. An important component of natural ventilation is air change rate or air changes per hour: the hourly rate of ventilation divided by the volume of the space. For ...

6. Giant Pandas Celebrate New Year - AOL

   www.aol.com/giant-pandas-celebrate-161202946.html

   Between gorging on fresh fruits, the pandas got to play on a big new toy, a new car. This photo shows giant pandas Mang Cancan and Mang Zai taking it for a test drive.

7. Sabrina Carpenter Shares Her NSFW New Year's Resolution ...

   www.aol.com/sabrina-carpenter-shares-her-nsfw...

   Sabrina Carpenter has an NSFW New Year's resolution.. On Jan. 2, the "Espresso" singer shared her goal for 2025 on Instagram — and it looks like she already broke it. "new year’s resolution no ...