Grating can also be a diffraction grating: a reflecting or transparent optical component on which there are many fine, parallel, equally spaced grooves. " CV. AGRO INDUSTRI SURABAYA " Telp.....
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A grating covering a drain can be a collection of iron bars ( the identical, elongated elements) held together ( to ensure the bars are parallel and regularly spaced) by a lighter iron frame.....
Grating can also come in 4 feet ( 121.9 cm) or 2 feet ( 61 cm) x 8 feet ( 243.8 cm) panels which are often used for decks on bridges, footbridges and catwalks. Other panel sizes may also be available....
A grating is any regularly spaced collection of essentially identical, parallel, elongated elements. Gratings usually consist of a single set of elongated elements, but can consist of two sets, in....
Lead has the highest atomic number of all of the stable elements, although the next higher element, bismuth, has one isotope with a half-life that is so long ( over one billion times the estimated....
Lead is used in building construction, lead-acid batteries, bullets and shot, weights, as part of solders, pewters, fusible alloys, and as a radiation shield. " CV. AGRO INDUSTRI SURABAYA " Telp.....
Lead is a chemical element in the carbon group with symbol Pb ( from Latin: plumbum) and atomic number 82. Lead is a soft, malleable and heavy post-transition metal. Metallic lead has a bluish-white....