NB/T 47022  法兰 M 600-1.6 /public/blue/data/public/blue/watermark.png

pl150-6rf gb=4rget=m5-15S=4RfF2 bl400-

47021cfm450-1.660-1.050

so50B-16rf00000-1

WN 600(B)-16 RF

BL 200(B)-16 RF

1 CFM 450-1.6 δ

47021 c-rf1000-0.6&;ampamp;ampwd=&=afb385890003

023FM700-2.5/50-1200-150f9b0(f06c16r00-1.6/64

47021fm600-1.u

1pl450(b)-1