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2. Marston Mat - Wikipedia

   en.wikipedia.org/wiki/Marston_mat

   RAF aircrew with one of their Bristol Beaufighters on a PSP airstrip at Biferno, Italy, August 1944. Marston Mat, more properly called pierced (or perforated) steel planking (PSP), is standardized, perforated steel matting material developed by the United States at the Waterways Experiment Station shortly before World War II, primarily for the rapid construction of temporary runways and ...

3. Slat armor - Wikipedia

   en.wikipedia.org/wiki/Slat_armor

   An IDF Caterpillar D9 armored bulldozer equipped with slat armor surrounding its driver's cab. Slat armor (or slat armour in British English), also known as bar armor, cage armor, and standoff armor, is a type of vehicle armor designed to protect against high-explosive anti-tank (HEAT) attacks, as used by anti-tank guided missiles (ATGMs) and rocket-propelled grenades (RPGs).

4. Rockfall barrier - Wikipedia

   en.wikipedia.org/wiki/Rockfall_barrier

   mesh size and shape: made from hexagonal wire mesh, circular rings or cables, this latter forming either rectangular, square, rhombus or water-drops mesh shapes; distance between supporting posts (ie. length of the mesh panels) number and lay out of the cables and brakes (if any) brakes (if any): various technologies and activation force levels

5. Ferrocement - Wikipedia

   en.wikipedia.org/wiki/Ferrocement

   Ferrocement or ferro-cement[1] is a system of construction using reinforced mortar [2] or plaster (lime or cement, sand, and water) applied over an "armature" of metal mesh, woven, expanded metal, or metal-fibers, and closely spaced thin steel rods such as rebar. The metal commonly used is iron or some type of steel, and the mesh is made with ...

6. Semi-trailer - Wikipedia

   en.wikipedia.org/wiki/Semi-trailer

   Semi-trailer. A tractor unit pulling a semi-trailer. A truck pulling a semitrailer using a trailer dolly. A semi-trailer is a trailer without a front axle. The combination of a semi-trailer and a tractor truck is called a semi-trailer truck (also known simply as a "semi-trailer", "tractor trailer", or "semi" in the United States). [ 1 ]

7. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!