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工字钢型号号尺寸（毫米）截面面积（厘米2）理论重量（公斤/米）hbdtr110100684.57.63.314.311.212.61267458.43.518.114.214140805.59.13.821.516.9161608869.9426.120.518180946.510.74.330.624.120a200100711.44.535.527.920b2001...
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