HG/T 20592  法兰 WN 50(B)-63 RFb/�6RS.6/

WN 50(B)-63 RFb/�6RS.6/

WN 15(A)-25 RF S=3.6

BL200-16RF2SchRFRFRFwRFch86h80

SO 40(B)-16 RFF S=

WN 300-300 RF-1.6-RF)-6RF-15

WN250(B)-63RF B=250

4 A2 DN=CH10RFt21633

PL500(B)-6 RFSch80S=12F1

WN 500-300 FM RF0-150RF1M0-16RF.5RF10F

3 C20rf0ef d=F)-101