FIELD: construction engineering. SUBSTANCE: relates to trusses of double-girth type with lower cast plate. Truss has sectional grate secured to cast plate and to girth. Component of grate is of V or W or VW configuration or is bent as triangle or triangle-like. Given in description of invention is device for manufacture of aforesaid truss. Aforesaid embodiment of truss allows for simple manufacturing technology. EFFECT: higher efficiency. 8 cl, 26 dwg
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