HG/T 20592  法兰 WN 250-40 RF

WN250-40 RF

WN 18"-600 RF Sch

WN200-300 RF

LWN 25-150 RFS=6A=168.3

SO 100-16 FF

WN 25(B)-16 G S=3.5

PL 600(B)-16 RF

B BL 20-300 RFM1.0

SO 100(B)-16 FF

WN80-300 RF00AFS=8S=3.5-R�ampampamF4b=3 f1=3RFS rfRch6Fh=.6 L16 RF/u420e/u00h40n12/u00c3hg2