UDC 621.315.6 GB 2326.2 85 Extension tie 1985-01-23 1985-12-01 1 2 2.1 YL 2.2 mm b d 2 lYL-1040162018400YL-1243182422430 Y L (cm) 3 3.1 GB2314 85 5% 3.2 GB2315 85 3.3 GB700 79 372.5N/mm 2 (372.5MPa)
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