GB/T 12459  偏心异径管 DN 1200×10-Sch10REpamp

DN 1200×10-Sch10 REpamp

PL40(a)-10fFSch80 RF-=155ch40RF16r

LWN 250-1500 RJ schFF30CRRS/M H=8/16

WN 10(B)-16 M000sF

WN 250-150 RFF S=12

BL 450-300 RF

WN 300-150 RF Sch

pl 300-10RF20c.55hb)-25rf509R7/0.62RFRF00-560Sh2f sch.40-

PL450(B)-10 RF.0/

法兰