HG/T 20592  法兰 WN 800-63 RF S=421F S=10FM95F.02444 h=71

WN800-63 RF S=421F S=10FM95F.02444 h=71

SO250-600 RFJh4h81

WN50-300 T S=4150hmS3022Cr1

so200(a)-150rf10F2300-=10

WN 600-150 RF Sch80pe5yz1=19

bl50(a)-150 RFSc=5F 5

WN20-150 RFF8420F d=/

BL150-300RFm�.6/foF00-6. mJ1500-s/B

B WN 800-150 RF S=S=88 S