GB/T 29465  法兰 C-FM 2050-6.4/20δ0=10

5 CFM 2050-6.420δ0=10

WN15A-40M05�-15550 RF S=10095�

b wn1150-300 rf sND 97SCH40srf5

5 M 700-1.0 δ6 RF00-0.6=0

BL600-6 RF0s.

PL100-16RF AA=78-140F0F.16 RF5 RFS460900H0s)--RF&900 RJ

BL450(B)-10 RFRFSch80RFRFS=1666 RF-1.0R

WN40-300 RF Sch80s

WN80