HG/T 20592  法兰 IF 350-160 FMF-300 RF150 RF Schj60-

IF350-160 FMF-300 RF150 RF Schj60-

WN 600-150 RF LM0

WN 150(B)-25 RF S=10.5

wn80b-40t80s1=F@443RF@AFF

WN 2"-300 RF Sch160F Cot

BL FF 10K 50App

WN 2"-150 RF Sch40S

wn100-150rfFM800-2.5/68-135RF0000.

WN 2"-300 RF Sch40S

SO 20(B)-16 FMM S