HG/T 20592  法兰 PL 150-25 RF S=6C=2t040RFSchS

PL 150-25RF S=6C=2t040RFSchS

WN 50-1500 FM Sch

wn500-600FM/Campa0δsS40 S

wn32-150 fmb=4c

WN 150-150 RF Sch80/data

BL 150-150 RF/data

Wn40-300rf RFch1000 δswB=42100FRFB)-1 S00RF@mpa100

SO 80-25FFF Sch40=22

WN 80-1500 fm Sch80

WN700-150 RF Sch90B1=