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2. Ferrocerium - Wikipedia

   en.wikipedia.org/wiki/Ferrocerium

   A modern ferrocerium firesteel product is composed of an alloy of rare-earth metals called mischmetal, containing approximately 20.8% iron, 41.8% cerium, about 4.4% each of praseodymium, neodymium, and magnesium, plus 24.2% lanthanum. [5] A variety of other components are added to modify the spark and processing characteristics. [2]

3. Tungsten - Wikipedia

   en.wikipedia.org/wiki/Tungsten

   Because the density is so similar to that of gold (tungsten is only 0.36% less dense), and its price of the order of one-thousandth, tungsten can also be used in counterfeiting of gold bars, such as by plating a tungsten bar with gold, [102] [103] [104] which has been observed since the 1980s, [105] or taking an existing gold bar, drilling ...

4. Spot welding - Wikipedia

   en.wikipedia.org/wiki/Spot_welding

   A portable spot welder. Spot welding (or resistance spot welding [1]) is a type of electric resistance welding used to weld various sheet metal products, through a process in which contacting metal surface points are joined by the heat obtained from resistance to electric current.

5. Nominal Pipe Size - Wikipedia

   en.wikipedia.org/wiki/Nominal_Pipe_Size

   Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...

6. List of welding codes - Wikipedia

   en.wikipedia.org/wiki/List_of_welding_codes

   Specification for carbon steel electrodes and rods for gas shielded arc welding AWS B1.10: Guide for the nondestructive examination of welds AWS B2.1: Specification for Welding Procedure and Performance Qualification AWS D1.1: Structural welding (steel) AWS D1.2: Structural welding (aluminum) AWS D1.3: Structural welding (sheet steel) AWS D1.4

7. Today's Wordle Hint, Answer for #1275 on Sunday ... - AOL

   www.aol.com/todays-wordle-hint-answer-1275...

   Today's Wordle Answer for #1275 on Sunday, December 15, 2024. Today's Wordle answer on Sunday, December 15, 2024, is FUNKY. How'd you do? Next: Catch up on other Wordle answers from this week.