HG/T 20592  法兰 PL 50-10 RF AA=59 FM S==

PL50-10RF AA=59 FM S==

WN 300-600 FF B=288.5

PL650-16RFA- B=48

WN65-300 RF B=61.8

WN65-300 RF B=61.

WN500-150 RF B=484

PL450(B)-16 FF C=45

SO 15-150 RF

BL 250-150 RF

3 FM 500-2.5/40-120J5-110� ز±450R=52@�˜160 h=223Th1050R2´s=408F H=1310ampamp