HG/T 20592  法兰 PL 300-6 RF0RF 111500SSC3

PL300a-6RF0RF 111500SSC3

DN 200×100-Ⅱ-8 RC

WN10(B)-63 FMc@ b=4 FM

3 CG 2600-2.520δ0=60=16516=8F b1=c

SO 50(B)-40 FM RFF6rum@80 S Sc80EL�

SO100-150 RF.611610-Sc

PL50(B)-16 RF WN 150-

法兰pl100(b)-16 rf

WN 250-150 FF H=/

WN100-600RJ φ