HG/T 20592  法兰盖 BL 40(B)-40 MFM-1.06f0-G00-

BL40(B)-40MFM-1.06f0-G00-

1 FM 700-0.25011rf1000-

wn15(B)-40m5FFS=4

PL600(B)-6RF b=5mpa RF II0s0

wn20(b)-63 m s=34.

WN 25(B)-40 RF S=40RF Sch40Sh610Gr

WN400-300 RF SCH80F B=408.0/

1 RF 700-1.0 δs=8orum.html63 FM58-170rum140-150

WN400(B)-10 FF S=)-25