HG/T 20592  法兰 WN 500-16 RFÂ10 RFb=2 D=140 B=52 f1=3 MX

wn500(A)-16rfÂ10 RFb=2 D=140 B=52 f1=3 MX

PJ/SE 25(B)-16 RF S=3.5 h=150

WN 500(B)-40 RF S=3.5635 B1=535 n=16 C=2030

PL 150(B)-25 RF b=3 B=111=1440N25-300 RF 600-10h800 RF-30

BL 32-25 FMS=107rfL=19 b=2B1281L2CH10FMSc40505 RF68 lllf突0/FM400-1.ch.80