NB/T 47021  法兰 C-FM 1000-1.0/20Оҙs=14

1 CFM 1000-1.020Оҙs=14

pl100(b)-16 rf b=3

so80(b)-10 fm s=58516 RF5¶-)

pl200(b)-16rfb1=161c=2

PL400(A)-6 RF S/1=1S40S6Р�

JWN 20×40-300 G=SF d=455B)0890R RC-

PL250(B)-10 RF D=405 K=355 L=26 C=29 f1=2.5 B1=268

3 B7�

WN 3"-900 RF

so 200-3