2025年工程建设资料：base.xls

种类符号C7.5C10C15C20C25C30C35轴心抗压3.75.07.510.012.515.017.5弯曲抗压4.15.58.511.013.516.519.00.60.70.91.11.31.51.7弹性模量14500...