法兰 WN 50(B)-16 RFF b=3 D=115 B=43

WN50B-16RFF b=3 D=115 B=43

pl300(b)-25rf A=57 S=3.5 b=4

PL50(A)-6RF0.6RF7.180

wn100-100t0 RF S00

BWN750-300RF

wn 80-300 rf sch40s

pl80(a)-16rfh.2 b1rf6/48S402mm=

wn125-16rf0/6/

wn100(B)-300 rf S

pl450b-16rf b=3 bb/

WN350-150 RF B=32800-0.6F)-)-2