HG/T 20592  法兰 PL 80-16 RFh4C=8h4 RF=30(b)1

pl 80-16 rfh4C=8h4 RF=30(b)1

2 B5-1Sch40n=

C-SO500(B)-16 ff1

PL15-16FF)-

WN65-150RJf/FRFb1=65M=5.1f6295R0010.21f500f21-16

PL 150(B)-16 RF/5

PL 80-10 RF=10 Hh 180ELSch60FMFM40sch5f b102MSch4R

3fm300-4.02 rf 1

WN150-900 RF/50F Sch

3 FM 1600-1.6pam hgFh