dn45无缝钢管外径
1、具体对照表如下规格DN公称直径Ф-外径1大外径系列DN15ф22mm,DN20ф27mmDN25ф34mm,DN32ф42mmDN40ф48mm,DN50ф60mmDN65ф7673mm,DN80ф89mmDN100ф114mm,DN125ф140mmDN150ф168mm,DN200ф219...
1、具体对照表如下规格DN公称直径Ф-外径1大外径系列DN15ф22mm,DN20ф27mmDN25ф34mm,DN32ф42mmDN40ф48mm,DN50ф60mmDN65ф7673mm,DN80ф89mmDN100ф114mm,DN125ф140mmDN150ф168mm,DN200ф219...