NB/T 47022  法兰 C-G 1400-4���70 rj221FM=4.2)-25 rf/F

pl100-6Rf RFF S=1000RFSch40Sch600RF0g

2 CG 1400-4���70 rj221FM=4.2)-25 rf/F

y1610-4-c1127 hg/@wn100(b)-16 rf s=6 FM

WN 80-25 RF S=716RF22 rF0SF55 wn450-6

WN200-150RF D=150ampampampampampampa

pl65(b)-10 ff bb=752660-1.02

C-BL250(B)-16 FM2009-o