HG/T 20592  法兰 WN 200-25 RF S=12

WN200-25 RF S=12

so100-25m16mnⅱo25-1

BII 3800 h=40080P0-F S

B WN 32"-150 RF0 δs=60 M S=3

bL150B)-16RF2TD 3160-s

SO250(B)-16 RFRFF�ch40=410RF HG/1/

pl300(B)-16RF15ELFMJ B=64=107F S=8100 h

3 FM 300-1.6rf S43aim05965-mH1=10B)

PL450A-16RFl-1a1