薄壁不锈钢管dn20(薄壁不锈钢管DN700支架间距表)
数据如下DN15127mm,DN201905mm,DN25254mm,DN323175mm,DN40381mm,DN50508mm1DN154分管子,内径15mm,外径23mm,壁厚4m2DN206分管子,内径20mm,外径27mm,壁厚3,5mm3DN251寸管子,内径25mm,外径32mm,壁厚...
数据如下DN15127mm,DN201905mm,DN25254mm,DN323175mm,DN40381mm,DN50508mm1DN154分管子,内径15mm,外径23mm,壁厚4m2DN206分管子,内径20mm,外径27mm,壁厚3,5mm3DN251寸管子,内径25mm,外径32mm,壁厚...