HG/T 20592  法兰盖 BL 500-25 M7=24RFS=d=1918�f(b)-

BL500-25m7=24RFS=d=1918�f(b)-

SO80-10RF AA10SO80K= RF&amp

WN80(B)-40 m B=147 RF b=u

wn20B)-25 RFml282F316000c¬Ã65 RF B=7

B WN1000-300 RF RF-10 rf S=2560RFCH10SFF SCH10S RFf0rfH

SO 450(B)-16 RFELS=3 S11001æ—& b=5

pj/@47023 rf1000-1.0/70-16