HG/T 20592  法兰 PL 150(B)-40 RFH=13=140 k=--300TF bF6 RF5Bc0/f40S)-16 H=1463/

PL150B-40rfH=13=140 k=--300TF bF6 RF5Bc0/f40S)-16 H=1463/

pl125(b)-10rf b1=螺çampa6.5H

B WN 1100-150 RF=84(B.0δ0

BL450-6RFru=46=12670

PL300(A)-16 RF D=45500-

BL 150-16 RF=3p

B WN 850-150 RF00-0.6RF50-150

LWN 25-300 RF H=160h8160=3

WN32-2500RJS0