GB/T 29465  法兰 RF 2-1F.8RF50 FFfS.5/F5065

DN400/PN40/01B=44RFR0f50/ rf b5RF2-1F.8RF50 FFfS.5/F5065

HP-2 –ë�6-16RF S/5h16

WN 20-150 RF SCH80F 500f/

WN15(B)-100 FM8

LWN25-300RF/15.9/215， Sch40S

47023 m800-2.5*6 RF/-105@0s4-6r0-5S.5/6h60.0-0.-150 RFampampampampampampampquotf

so 40-25