热轧普通工字钢(GB706—88)表3-9续上表型号尺寸(mm)截面面积(cm2)理论质量(kg/m)hbdtrr140b40c45a45b45c50a50b50c56a56b56c63a63b63c40040045045045050050050056056056063063063014414615015215415816016216616817017617818012.514.511.513.515.512.014.016.012.514.516.513.015.017.016.516.518.01 (共 4356 字) [阅读本文] >>