NB/T 47022  法兰 FF 300-1/020¬/-1.0 S=38RF6

2 FF 300-1020¬/-1.0 S=38RF6

WN150(B)-25RF10F(b

pl125(b)-16rfhg/t

PL40(B)-16FFbot-

WN 200-150 RF S=8mpc-1m00ASMSch40160 r=5 h40M400-2forum5M

BL250-63Rf/u0Fch40-100-0.6 MFM/50 S

PL150(A)-25MFBL50 RF -300F08.0/f5RF10RF6-f/

2 B5-1Sch40n=17-3R-1

PL450(B)