法兰 PL 50-16 FFSch60Sletf1000-1.0F

PL50-16FFSch60Sletf1000-1.0F

PL20(a)-16 RF B=28

wn25(b)-25g s=/80

BL250-10rf S=14.5.0-0.6/F-25RF RF

WN15-1500RJb)-6

NB/T47023 M500-1F1 Rf-1.0.0/45-51 δ=61.0pl1018-2.5/690

WN300(B)-25 RF s=8

wn50-150 rf asme b

PL15(a)-10 RFwn60RF-A1=2.

SO350-40 RF