GB/T 29465  法兰 C-FM 2050-1.0/20δ0=20

5 CFM 2050-1.020δ0=20

LWN25-150 RF Sch40S H=208c00-

B WN 650-300 RF Sch40rfã 20-4w.6s

WN 500(B)-16 RF S=

PL80A-16 RF800-2.5RF-1F B50 B-f/@4FM00-16074=40

LWN 1"-150 RFsch40C.b1s=1D=105f6gh40sf NL8=

wn25-40fm C

SO 80-150 RF麓=50 h=118.0ch40

WN