HG/T 20592  法兰 SO 450-16 RF/public/data/src

wn80-63rf375r-16 FF000

SO 50(A)-25 RF b=0F 2frfF

SO 32(B)-40 RFSch40Sگ�.N1502040s40063RFF53

bl150-600rjRFmSO80-25

DN 800×15-Ⅱ-3.5 RCF

SO32(B)-25FM0-4.6RFSB

SO 500(B)-10 RF7-16rf a=140 b=12

SO 40(B)-16 Tî´=78 h=165 n/.6 δ=27 δs=1

PL 600(B)-