GB/T 29465  法兰 FF 650-1.6/20δ0=12

5 FF 650-1.620δ0=12

Pl125b-6rfr H=FM6M0mG

WN15-1500Tsc16RF16500-4.0/46-110rf80

DN 400-12.7 TS00 rfo

WN15-300 RF H1)-10 RF/15��FF�2

SO 200(B)-16 RF206.Sch4-fm 400-1.6/F) Sc

wn150b-63fm10RFs=f206/rf

3 FF 800-1.0h40=C2php00fR RFr)-10 RF/

wn600-