HG/T 20592  法兰 WN 500-25 RF00=(B)-1-1500 RF=4Fs6f s1F6 R

WN 250-600 RF S=22mp0 RFSC205RM600-c300F0-10 RF=4Fs6f s1F6 R

20592 WN500-25RF00=(B)-1-1500 RF=4Fs6f s1F6 R

SO50A-25RF)-D=98ch b=mpampamp0-0.6RFS=@RF=4Fs6f s1F6 R

wn65-16rf s=4 d05F0-10 RF=4Fs6f s1F6 R

WN 20-63 mampa80/ s¢0RFRF0-10 RF=4Fs6f s1F6 R

BL