导轨型钢中心线(Y-Y)与底面垂直度的偏差

常用金属工程材料 | 型钢 | 其他型钢 | 电梯导轨用热轧型钢(摘自YB/T 157-1999)

型号,"T75,T78,T82,T89",T90,"T114,T125,T127-1,T127-2","T140-1,T140-2,T140-3" |a-b|,≤0.5,≤0.65,≤0.75,≤2. ...