HG/T 20592  法兰盖 BL 200-10 RFBI 100010F Sc

bl 200-10 rfBI 100010F Sc

WN150-150 RF S=4

WN300-600RFch80s-Srf 10ÃÂRFRF S-1.1.0/70078

DN40-PN6 SO RF

SO 150-25 RF00-1

WN80-150 RF S=4

WN 1/2"-600 RF S=3.7

WN400(B)-25 M SRFS s=6157l20-rf2f=7

WN150B-25RF S=10

WN 50-150 RF S=4�/F35-930)F/nbsp