HG/T 20592  法兰 PL 250-25 RF0M RFfF/mlB)- Sch5sF S=1.2-200

PL250-25RF0M RFfF/mlB)- Sch5sF S=1.2-200

wn10(b)- 16rf b=fF 1ch

pl200(b)-2.5ff-1160FRF10BF165

BL20-600RFu00e6-1

SO 150-150 FF592=32

wn 600-150 RF sch302-27500-0.25

WN 250-300RF/0-1.

PL50(B)-16 RF0mm2.5 RFA=F13Sc.5ch40RF044-R F

SO 80-150 RF)-25fm41-1