详细说明
16mn小口径无缝钢管 140X10 5350
16mn小口径无缝钢管 140X12 5350
16mn小口径无缝钢管 152X6 5350
16mn小口径无缝钢管 152X8 5350
16mn小口径无缝钢管 152X9 5350
16mn小口径无缝钢管 152X10 5350
gb8163 99 20#/GB8163 168X5.5 5110
gb8163 99 20#/GB8163 168X6 5110
gb8163 99 20#/GB8163 168X8 5110
gb8163 99 20#/GB8163 168X10 5110
gb8163 99 20#/GB8163 180X8 5360
gb8163 99 20#/GB8163 180X10 5360
gb8163 99 20#/GB8163 194X8 5360
gb8163 99 20#/GB8163 194X10 5360
gb8163 99 20#/GB8163 219X7 5360
gb8163 99 20#/GB8163 219X8 5360
gb8163 99 20#/GB8163 203X8 5360
gb8163 99 20#/GB8163 203X10 5360
gb8163 99 20#/GB8163 219X6 5360