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2. Liquid rheostat - Wikipedia

   en.wikipedia.org/wiki/Liquid_rheostat

   Typically a traditional liquid rheostat consists of a steel cylinder (the negative), about 5 feet (1.5 m) in size, standing on insulators, in which was suspended a hollow steel cylinder. This acted as the positive electrode and was supported by a steel rope and insulator from an adjustable pulley. The water pipe connection included an insulated ...

3. Boilermaker - Wikipedia

   en.wikipedia.org/wiki/Boilermaker

   Other boilermakers might work seasonally or on an individual project such as re-fitting a boiler in a seagoing vessel or remodeling a steam plant. Boiler repair can be a high-value, high-cost service since even the smallest steam boilers for dry cleaners and tailors can cost upwards of $20,000 to replace. [citation needed]

4. Still - Wikipedia

   en.wikipedia.org/wiki/Still

   However, many modern stills are made of stainless steel pipes with copper linings to prevent erosion of the entire vessel and lower copper levels in the waste product (which in large distilleries is processed to become animal feed). [2] Copper is the preferred material for stills because it yields an overall better-tasting spirit.

5. Boiler - Wikipedia

   en.wikipedia.org/wiki/Boiler

   Wrought iron boilers corrode far more slowly than their modern-day steel counterparts, and are less susceptible to localized pitting and stress-corrosion. That makes the longevity of older wrought-iron boilers far superior to that of welded steel boilers. [citation needed] Cast iron may be used for the heating vessel of domestic water heaters ...

6. Stainless steel - Wikipedia

   en.wikipedia.org/wiki/Stainless_steel

   Stainless steel, also known as inox, corrosion-resistant steel (CRES), and rustless steel, is an iron-based alloy containing a minimum level of chromium that is resistant to rusting and corrosion. Stainless steel's resistance to corrosion results from the 10.5%, or more, chromium content which forms a passive film that can protect the material ...

7. John Cockerill (company) - Wikipedia

   en.wikipedia.org/wiki/John_Cockerill_(company)

   The industry sub-division manufactures equipment for steel coil treatment including pickling, annealing, hot dip and electro galvanising lines, rolling mills and reheating furnaces for the steel industry., [7] as well as shunting locomotives. [8] The energy sub-division products include heat recovery steam generator and boilers. [9]