HG/T 20592  法兰 PL 500(B)-6 FFrforRFpaKF-25r00-2.1

pl500(B)-6FFrforRFpaKF-25r00-2.1

bl400-25fm0aH80=0(b)-46-

WN100-16 RF 25C=150(a)-25pampampam

pl32 -10rfF5RR RF STD=&ampampampampa

WN1"-150 RF S＝5 S=5320

SO 150-150 RFFF&=76m6mpampampampampqu160

LWN 32-900 RJ0S40h63FRFfm=Sch3FnvcF

SO100-150