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2. Tungsten carbide - Wikipedia

   en.wikipedia.org/wiki/Tungsten_carbide

   Tungsten carbide (chemical formula: WC) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes through sintering [7] for use in industrial machinery, engineering facilities, [8] molding blocks, [9] cutting tools, chisels, abrasives, armor ...

3. Polycarbonate - Wikipedia

   en.wikipedia.org/wiki/Polycarbonate

   extrusion into tubes, rods and other profiles including multiwall; extrusion with cylinders into sheets (0.5–20 mm (0.020–0.787 in)) and films (below 1 mm (0.039 in)), which can be used directly or manufactured into other shapes using thermoforming or secondary fabrication techniques, such as bending, drilling, or routing. Due to its ...

4. Bar stock - Wikipedia

   en.wikipedia.org/wiki/Bar_stock

   The same is true of metal bar stock. The most common shapes are round bar (also called rod), rectangular bar (including square bar, the special case of equal sides), and hexagonal bar (usually called hex bar for short). Tube and pipe are similar, but have hollow centers and are traditionally not called "bar" in industrial usage. (However, a ...

5. Fiberglass - Wikipedia

   en.wikipedia.org/wiki/Fiberglass

   Fiberglass rods provide an advantage over steel rods because they stretch more elastically (lower Young's modulus) than steel for a given weight, meaning more oil can be lifted from the hydrocarbon reservoir to the surface with each stroke, all while reducing the load on the pumping unit. Fiberglass rods must be kept in tension, however, as ...

6. Plastic welding - Wikipedia

   en.wikipedia.org/wiki/Plastic_welding

   The speed tip heats the rod and the substrate, while at the same time it presses the molten weld rod into position. A bead of softened plastic is laid into the joint, and the parts and weld rod fuse. With some types of plastic such as polypropylene, the melted welding rod must be "mixed" with the semi-melted base material being fabricated or ...

7. Black Friday isn't over at Walmart: Here are the 10 best ...

   www.aol.com/lifestyle/black-friday-isnt-over-at...

   The 10th Generation iPad is one of Apple's sharpest, featuring an A14 bionic chip and 64MB of space. It's perfect for connecting to your WiFi and watching TV, reading books, playing games, and ...