dn300焊接钢管多少钱一米
常用钢管规格表如图所示大外径系列,规格,DN公称直径,Ф-外径,#8194#8194DN10Ф14mm,DN15Ф18mm,DN20Ф25mm,DN25Ф32mm,DN32Ф38mm,DN40Ф45mm,DN50Ф57mm,DN65Ф76mm,DN80Ф89mm,DN100Ф108mm,DN125Ф133mm,DN...
常用钢管规格表如图所示大外径系列,规格,DN公称直径,Ф-外径,#8194#8194DN10Ф14mm,DN15Ф18mm,DN20Ф25mm,DN25Ф32mm,DN32Ф38mm,DN40Ф45mm,DN50Ф57mm,DN65Ф76mm,DN80Ф89mm,DN100Ф108mm,DN125Ф133mm,DN...