NB/T 47023  法兰 RF 1350-4.

20623 RF 1350-4.

47021 c-rf 1200-0.6.50-1.6/

PL 200(B)-10 RF-200000(b)-0f-0

BL300-150 RF L=190F S=

bl450-300 rfF0-4=afb3RF�║пRF500-s/@l�ђ

PL150B-10RF6 RF111=/=51S

PL450-6 RF47 A=57b)-10r0-10

WN 600(B)-16 RF S=246 R

wn200-600rj luot

47023ff70