HG/T 20592  法兰 WN 80-25 RFd50=jmxinv RF B=110RF2 RJ B

wn80-25rfd50=jmxinv RF B=110RF2 RJ B

WN RF 10K 250A Sch8-150 FF S=S=XS3)-3F225

WN350-300RF SCH80Jmpquot K=127 n=8

LP-2-1501=775 BB=5355Sch40S0-150 RF80Spam

BL25-300 RF=5h160

SO25(B)-6 RF5.3 tf=38.3=80 H=40

WN65-25 RF S=60600-1-1.

WN 3"-150 RF S=