| 摘要 |
The rail (1) has a slot (2) integrated in a longitudinal direction of the rail. A web section (3) is angled based on side limits of the slot, where the rail is designed in a rectangular cross section and is formed from metal strip. The web section is outwardly or inwardly extends from the side limits of the slot. Blanks are formed in free ends of the web section in single layer or two layer formats, where axial knurls are provided in the blanks. A free punch and/or a through hole are designed in front side ends of the rail. |
