FIELD: building material industry. SUBSTANCE: grid has flange 1 and rods 2 equally spaced along flange and extending perpendicularly to it. String-type rings 3 are secured to rods in parallel relation to flange. Rods are rigidly secured along flange perimeter so as to define cells of predetermined size between rods and strings. EFFECT: increased efficiency and enhanced reliability in operation. 2 dwg
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Authors
Dates
1994-02-28—Published
1991-07-08—Filed