HG/T 20592  法兰 BLS 80-25 T/@or rf sch½@4ï؟H80-1.ch30S9100RF Sch600 RF@42

BL(S) 80(A)-25 T/@or rf sch½@4ï؟H80-1.ch30S9100RF Sch600 RF@42

SO50-150 RF SF S

PL80(B)-25 FM BL140 RF,

SO80-300 RF�&8 BI2

LWN 40-300 RF SCH40 H=225.5

WN25 B-16RF S=4009 W5mp;a;

WN 50(B)-25 RF S=500b3/000FM340F.6B

WN25A-63FM1F2606fRF1=1/45-51