BS EN 10055-1996 Hot rolled steel equal flange tees with radiused root and toes. Dimensions and tolerances on shape and dimensions .pdf 未知 BS EN 13555-2004 Flanges and their joints. Gasket parameters and test procedures relevant to the design rules for gasketed circular flange connecti..pdf 未知 BS EN 1591-2-2008 Flanges and their joints - Design rules for gasketed circular flange connections Part 2 Gasket parameters.pdf 未知 完整英文版 ANSI/AISC 360-22 钢结构建筑规范(2022版、完整780页).pdf PDF 7.59MB 780页