HG/T 20592  法兰盖 BL 100-16 FF D=675 K=605 C=40 L=33 n=2

wn50(b)-25 fms=12-2F D= K= AA= d= L=

BL100-16 FF D=675 K=605 C=40 L=33 n=2

wn25-300g d=115 undefined=43

PL20B-25Rff.4/G/20592.6RFN1-FFpam

wn125b-16rf f1= d= B= D= K= L= n= C=

WN65(A)-10 RF S=3.05 S=5F A=89 S=)-16

BL250(B)-10 RF

WN 40(B)-100 RF

WN 40(