法兰 RF 000-0.6/6RF-FRF

BⅡ4000-FfmF150-1rf000-0.66RF-FRF

WN25(B)-25RF A=33.7 S=2.60(B)-16RF23FS-25 F

NB/T47022 FM1400-0.66 R

WN200-150RF SCH40

47023 FM550-2.5 S=10

BL100-40 FF6=4Sch80050900-6m s2’6RF1.6s=69D=405 K=38RF b=2

PL80(B)-10 RFf/25/L=

47023 RF900-1.0/53-1

BL150