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2. Perforated metal - Wikipedia

   en.wikipedia.org/wiki/Perforated_metal

   Perforated metal, also known as perforated sheet, perforated plate, or perforated screen, is sheet metal that has been manually or mechanically stamped or punched using CNC technology or in some cases laser cutting to create different holes sizes, shapes and patterns. Materials used to manufacture perforated metal sheets include stainless steel ...

3. Sandwich-structured composite - Wikipedia

   en.wikipedia.org/wiki/Sandwich-structured_composite

   Composite sandwich structure panel used for testing at NASA. In materials science, a sandwich-structured composite is a special class of composite materials that is fabricated by attaching two thin-but-stiff skins to a lightweight-but-thick core. The core material is normally of low strength, but its greater thickness provides the sandwich ...

4. Hardboard - Wikipedia

   en.wikipedia.org/wiki/Hardboard

   Hardboard. A section of hardboard. Hardboard output in 2005. Hardboard. Hardboard, also called high-density fiberboard (HDF), [1] is a type of fiberboard, which is a pressed wood or engineered wood product. [2] It is used in furniture and in the construction industry.

5. Multi-layer insulation - Wikipedia

   en.wikipedia.org/wiki/Multi-layer_insulation

   The metal coated plastic layers and the scrim separator are visible. Multi-layer insulation (MLI) is thermal insulation composed of multiple layers of thin sheets and is often used on spacecraft and cryogenics. Also referred to as superinsulation, [1] MLI is one of the main items of the spacecraft thermal design, primarily intended to reduce ...

6. Perforated hardboard - Wikipedia

   en.wikipedia.org/wiki/Perforated_hardboard

   A close-up view of a sheet of pegboard. Perforated hardboard is tempered hardboard which is pre-drilled with evenly spaced holes. The holes are used to accept pegs or hooks to support various items, and perforated hardboards are therefore used for purposes such as tool boards in workshops. Peg-Board is an expired trademark used as a brand name ...

7. Marston Mat - Wikipedia

   en.wikipedia.org/wiki/Marston_mat

   Sometimes the sheets were welded together. A typical later PSP was the M8 landing mat. A single piece weighed about 66 pounds (30 kg) and was 10 ft (3.0 m) long by 15 in (0.38 m) wide. The hole pattern for the sheet was produced to allow easier transportation by aircraft, since it weighed about two-thirds as much.