GB/T 29465  法兰 FF 1250-1.6/20δ04

5 FF 1250-1.620δ04

SO100(B)-16RF RF150 RF60

pl150-16 rf b=3

DN300-PN16 BL RF ⅡS=400-4.0RF RF=3

PL450(B)-25 RFe2/u0Sc19RF-3.5500b=3/S=3.730RJ S600-

wn80A-10RF5M40S8/JF5 S

WN 150-25 RF S=54b=4FFl6-6.4 S

47021 C-RF850-0.25/š&ampampRF

LWN25-150 RF