FIELD: construction.
SUBSTANCE: invention pertains to construction sphere, namely to construction of shaped steel and is intended for sides facing of buildings and constructions. Shaped steel includes recurrent across the width of the metal sheet undulated corrugations with fixing locks on the edges of uttermost corrugations. Bulbs of the corrugations are positioned in the same direction, corrugations are made along the arch of the circle with the ratio of f:1 - 0.25: where f - height increment, 1 - arch chord length. Lines tangent to neighboring chords are set at a sharp angle at the point of their mating with each other.
EFFECT: hardening and improved consistency.
2 cl, 3 dwg
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