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2. Design of plastic components - Wikipedia

   en.wikipedia.org/wiki/Design_of_plastic_components

   Sharp Corners general design guidelines in injection molding suggest that corner radii should be at least one-half the wall thickness. It is recommended to avoid sharp corners and use generous fillets and radii whenever required. During injection molding, the molten plastic has to navigate turns or corners.

3. Rotational molding - Wikipedia

   en.wikipedia.org/wiki/Rotational_molding

   Rotational molding offers design advantages over other molding processes. With proper design, parts assembled from several pieces can be molded as one part, eliminating high fabrication costs. The process also has inherent design strengths, such as consistent wall thickness and strong outside corners that are virtually stress-free.

4. Poly(methyl methacrylate) - Wikipedia

   en.wikipedia.org/wiki/Poly(methyl_methacrylate)

   All common molding processes may be used, including injection molding, compression molding, and extrusion. The highest quality PMMA sheets are produced by cell casting, but in this case, the polymerization and molding steps occur concurrently. The strength of the material is higher than molding grades owing to its extremely high molecular mass.

5. US-1 Trucks - Wikipedia

   en.wikipedia.org/wiki/US-1_Trucks

   The Wrecker and Fire Truck and a number of Peterbilt trucks were made with working lights. These had a small bulb soldered to the two motor contacts. On lit Peterbilts this nested in a recess within a clear plastic molding that plugged into the front grille and some openings in the cab roof. This also served as glazing in the cab windows.

6. Polystyrene - Wikipedia

   en.wikipedia.org/wiki/Polystyrene

   Polystyrene (PS) is used for producing disposable plastic cutlery and dinnerware, CD "jewel" cases, smoke detector housings, license plate frames, plastic model assembly kits, and many other objects where a rigid, economical plastic is desired. Production methods include thermoforming (vacuum forming) and injection molding.

7. Molding (decorative) - Wikipedia

   en.wikipedia.org/wiki/Molding_(decorative)

   Corner guard: Used to protect the edge of the wall at an outside corner, or to cover a joint on an inside corner. Cornice : Generally any horizontal decorative moulding Cove moulding or coving : Concave-profile moulding that is used at the junction of an interior wall and ceiling