HG/T 20592  法兰 PL 80(B)-6 FF D=170 B=100 L=123A=78 n=48 h=16049RJ

PL 80(B)-6 FF D=170 B=100 L=123A=78 n=48 h=16049RJ

BI 219 4P=10-25 RF S=410rfRF S bl1650150 δ=93 δ0=18R-1.0150 RF C=140 RF A=

SO125A-25M

&;amp;quot BL25-300 RF=175C=

WN80-900 rf3A(B)-10 FF0Sch=8F,H0-)=14 B=1580s12 RF/540950 RFh120-1.6Fhgch80SSch40