HG/T 20592  法兰盖 BL 20-16 RF50-2.5=10F60

bl20-16rf50-2.5=10F60

BL 500-16 RF╨Σέ sCH401119 so32-15 Cpa4.0/

1 RF 1600-0.25 δs=12

3 FM800-4.0 S=14RFmRF80s8xB)-3/u00ae/58h4 s 70

20623fm2500-1

SO65-150 RF1.000-

PL80-10 RF Φ73*RF B=5/F

PL40A-10RF-16RF S=12=≥12-16RF

2 RF 1600-0.6 δ1=12

WN