FIELD: multilayer panels with filler.
SUBSTANCE: panel has upper and lower walls and zigzag-shaped filler placed between them. Filler is trapezoid-like in cross-section, and in its recesses inserts inserted into panel are placed, profile of which matches profile of filler in cross-section.
EFFECT: higher efficiency, higher durability and lower laboriousness of manufacture.
1 dwg
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RU2268813C1 |
