HG/T 20592  法兰盖 BL 250(B)-6 RF C

BL250(B)-6RF C

SO 15(B)-16 RF=170 C=7511400-1.0

PL65-2.5FFF=≥7 S=18

WN200-900 RF Sch40s600-

WN15(B)-160RF

pl50(b)-16rfСҸв–

WN 50-150 RF Sch80

DN 650×650×32-Sch120 TR

WN600(B)-16 RF

PL300-6 fF100-=s=4-120Smp-s /ch80Fb)-16 RF S=6.37.1=4019oF