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2. Doorstop - Wikipedia

   en.wikipedia.org/wiki/Doorstop

   If it is attached to the wall, it may be either a few inches above the ground, or at such a height as to meet the doorknob. A short, wall-attached doorstop, usually a rubber dome or cylinder, is sometimes called a wall bumper. Rigid metal springs (also tipped with rubber or plastic) are used to absorb and more widely distribute the kinetic ...

3. List of polyurethane applications - Wikipedia

   en.wikipedia.org/wiki/List_of_polyurethane...

   The metal seat frame is placed into the mold and the mold closed. At this point the mold contains what could be visualized as a "hollow seat", a seat fabric held in the correct position by the vacuum and containing a space with the metal frame in place. Polyurethane chemicals are injected by a mixing head into the mold cavity.

4. Picture frame - Wikipedia

   en.wikipedia.org/wiki/Picture_frame

   View of a frame-maker's workshop, oil on canvas, circa 1900 The elaborate decoration on this frame may be made by adhering molded plaster pieces to the wood base.. A picture frame is a container that borders the perimeter of a picture, and is used for the protection, display, and visual appreciation of objects and imagery such as photographs, canvas paintings, drawings and prints, posters ...

5. Polypropylene - Wikipedia

   en.wikipedia.org/wiki/Polypropylene

   With speed welding, the plastic welder, similar to a soldering iron in appearance and wattage, is fitted with a feed tube for the plastic weld rod. 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.

6. A Native American photographer took powerful portraits of ...

   www.aol.com/native-american-photographer-took...

   The project has grown from a photo series to a documentary project to a full-blown archive of Native people, their communities, and their stories. Chief Bill James, Lummi Nation. Matika Wilbur

7. Plastic - Wikipedia

   en.wikipedia.org/wiki/Plastic

   In 2018 more than 343 million tons of plastic waste were generated, 90% of which was composed of post-consumer plastic waste (industrial, agricultural, commercial and municipal plastic waste). The rest was pre-consumer waste from resin production and manufacturing of plastic products (e.g. materials rejected due to unsuitable color, hardness ...