| 摘要 |
The holder has bars (4a,4b) and/or stops (5) which can work in profiled rails (3a,3b), preferably of C-section, and which can contain drain holes. The bars can be of angle-section, with two short flanges at right angles and forming guides for them. Each flange can contain one or more screw holes. The bars can be locked in position in the rails by screws, grooved blocks and keys. Each stop can consist of a rectangular-section tube, with supporting and guide members at the ends. Each of these members can consist of an angle-section and an extension piece. Each angle section can contain one and preferably two holes for screws securing it in the rail via a grooved block and key.
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