弯头 DN 50-490ESSRCf00h4b)-25fmc1¢Ã

DN 50-4 90ESSRCf00h4b)-25fmc1¢Ã

so65(b)-10rf b=8/ H=107g50 RFHG/4

47021 FM400-1.Â

SP-9M1.6F09 RF S=6Sc B=78.9RF6F009 WN32-1/FC=94

SP-6 DN=1800 δ=14 S1=16SCH4

WN250-1500 RJ S=25/

HG/T 20615-2009 WN100-16 RF

PL200B-6FM

WN25 B-63RFF=56r.01./MBp0 s=6