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Corrugated galvanised iron (CGI) or steel, colloquially corrugated iron (near universal), wriggly tin (taken from UK military slang), pailing (in Caribbean English), corrugated sheet metal (in North America), zinc (in Cyprus and Nigeria) or custom orb / corro sheet (Australia), is a building material composed of sheets of hot-dip galvanised ...
Detail of the underside of the bridge, showing the corrugated steel. The multi-plate arch bridge design was introduced in 1931 by the Armco Culvert Manufacturer's Association. The plates are made of galvanized corrugated steel, manufactured in curved segments, and assembled on site to build an arch. The corrugations, about 6 inches (150 mm ...
Steel corrugated culvert with a drop on the exhaust end, northern Vermont. Culverts can be constructed of a variety of materials including cast-in-place or precast concrete (reinforced or non-reinforced), galvanized steel, aluminum, or plastic (typically high-density polyethylene). Two or more materials may be combined to form composite ...
CSST is used as an alternative to the older standard “black iron” (steel) gas pipe. The inner stainless steel layer of typical residential CSST is .2 to .3 mm thick while the wall thickness of typical residential “black iron” gas pipe is 3 to 4 mm thick. CSST is more expensive than “black iron” gas pipe.
An important variant of the metal hose can be attributed to the inventor Siegfried Frank of Frankfurt, Germany. In 1894, he patented the method of rolling a helical corrugation into a smooth rigid pipe. Witzenmann had already made experiments in this direction several years earlier, but did not continue his efforts to create a patentable result.
Corrugated galvanised iron, a building material composed of sheets of cold-rolled hot-dip galvanised mild steel; Corrugated plastic, a wide range of extruded twinwall plastic-sheet products produced from high-impact polypropylene resin; Corrugated stainless steel tubing, tubing made of stainless steel with corrugation on the inside or outside