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2. Copper foil - Wikipedia

   en.wikipedia.org/wiki/Copper_foil

   Copper foil is a thin sheet of copper metal that is widely used in various applications due to its excellent electrical conductivity, malleability, and corrosion resistance. It is an essential material in the electronics industry, especially for manufacturing printed circuit boards (PCBs) and other electronic components.

3. Copper tape - Wikipedia

   en.wikipedia.org/wiki/Copper_tape

   Copper tape. Copper tape refers to a thin strip of copper, often backed with adhesive. Copper tape can be found at most hardware and gardening stores, and sometimes electronic stores. Copper tape is used to keep slugs and snails out of certain areas in gardens, potted plants, and trunks of fruit trees, and other trees and shrubs.

4. Materials for use in vacuum - Wikipedia

   en.wikipedia.org/wiki/Materials_for_use_in_vacuum

   304L stainless steel, a low-carbon variant of 304 steel, is used for ultra-high vacuum systems. 316L stainless steel a low-carbon and low-magnetic stainless steel, used in accelerator technologies. 347 stainless steel does not accept high polish. 321 stainless steel is chosen when low magnetic permeability is needed.

5. Coil winding technology - Wikipedia

   en.wikipedia.org/wiki/Coil_winding_technology

   Coil winding technology. In electrical engineering, coil winding is the manufacture of electromagnetic coils. Coils are used as components of circuits, and to provide the magnetic field of motors, transformers, and generators, and in the manufacture of loudspeakers and microphones. The shape and dimensions of a winding are designed to fulfill ...

6. Timeline of United States inventions (before 1890) - Wikipedia

   en.wikipedia.org/wiki/Timeline_of_United_States...

   Pressure-sensitive tape, PSA tape, adhesive tape, self-stick tape, or sticky tape consists of a pressure-sensitive adhesive coated onto a backing material such as paper, plastic film, cloth, or metal foil. The first pressure-sensitive tape took the form of surgical tape, invented by Dr. Horace Day in 1845. [92] 1845 Maynard tape primer

7. Electrical tape - Wikipedia

   en.wikipedia.org/wiki/Electrical_tape

   Electrical tape, standard black. Electrical tape (or insulating tape) is a type of pressure-sensitive tape used to insulate electrical wires and other materials that conduct electricity. It can be made of many plastics but PVC (polyvinyl chloride, "vinyl") is the most popular, as it stretches well and gives effective and long-lasting insulation.