HG/T 20592  法兰 PL 400(B)-6 RF@b40ï؟½da

PL400(B)-6 RF@b40ï؟½da

WN250-150 FM Sch40 S=10

BL150-16RF4h

WN153-600RFÂquot

PL 20(B)-40 RF0

WN100-900 RJ S=4.5

B WN 32"-600 RF

3 RF500-6.4

WN200(A)-25 FM S=5

PL65(b)-16RFF Schampampampampampampampamp;ampampampquotyun2.5 &ampamp;amp;amp;