| 摘要 |
FIELD: construction; may be used in manufacture of load-bearing member of building frame from light structural members. SUBSTANCE: method provides for breaking-up the initial billets in two or three zigzag similar lines parallel to each other and separated from each other in vertical plane, turning cutout zigzag strips round horizontal axis and their joining with projections formed by lower and upper parts of beam. EFFECT: higher efficiency. |
