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The older United States Standard Gauge is based upon 40 lb per square foot per inch thick. Gauge is defined differently for ferrous (iron-based) and non-ferrous metals (e.g. aluminium and brass). The gauge thicknesses shown in column 2 (U.S. standard sheet and plate iron and steel decimal inch (mm)) seem somewhat arbitrary.
Rondelle; cylindrical vegetables cut to discs of desired thickness 1 ⁄ 8 – 1 ⁄ 2 inch (3–10 mm) Oblique; triangle-shaped cuts made by rolling cylindrical items 180° in between bias cuts; Tourné; 2 inches (50 mm) long with seven faces usually with a bulge in the center portion; Mirepoix; 3 ⁄ 16 – 1 ⁄ 4 inch (5–7 mm)
Diamond polisher in Amsterdam. Polishing is carried out by forcing a diamond against a spinning disk with abrasive. Diamond polishing is the final polishing of the diamond. In a diamond factory, one would find a diamond crossworker who first places the main facets on a diamond (blocking the diamond). This is done to ensure maximum weight ...
Tread plate, also known as checker plate and diamond plate, is a type of metal stock with a regular pattern or lines on one side as a decoration. These products are often mistakenly used as slip resistant products.
Even with modern techniques, the cutting and polishing of a diamond crystal always results in a dramatic loss of weight; rarely is this loss less than 50%. The round brilliant cut is preferred when the crystal is an octahedron , as often two stones may be cut from one such crystal.
Weight mark "155 PS" on a jointed segment of 155 lb/yd (76.9 kg/m) "Pennsylvania Special" rail, the heaviest grade of rail ever mass-produced Cross-section drawing showing measurements in Imperial units for 100 lb/yd (49.6 kg/m) rail used in the United States, c. 1890s New York Central System Dudley 127 lb/yd (63.0 kg/m) rail cross section
A diamond cut is a style or design guide used when shaping a diamond for polishing such as the brilliant cut. Cut refers to shape (pear, oval), and also the symmetry, proportioning and polish of a diamond. The cut of a diamond greatly affects a diamond's brilliance—a poorly-cut diamond is less luminous.
This is a partial list of the largest non-synthetic diamonds with a rough stone (uncut) weight of over 200 carats (40 grams). [1] The list is not intended to be complete—e.g., the Cullinan (formerly Premier) mine alone has produced 135 diamonds larger than 200 carats since mining commenced.