HG/T 20592  法兰 WN 50(B)-40 RF00-150-16data Sc

wn50b)-40rf00-150-16data Sc

SO 300-16 RFB

SO 400-16 RF/)-16RF.40=3 C=1825FMrf7.3

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