HG/T 20592  法兰盖 BL 125-16 FF0 S=4.0 h=118RF16)-8)-

BL125-16ff0 S=4.0 h=118RF16)-8)-

Bii 2200-10r52 K=120.6ampampampampa1h

WN25(B)-25FM S=4h10-10-1.00RJF60 r40ch80S2.5/100-0

wn200b-25rf s=7.5H=244s000=12Fc

BII1800�uf Rj7.6=3FS rf s=ftmF S�6 RF00- R

WN 150(A)-100 RF S=6=4 δ=1

WN50(B)-900 FM1.081=N