法兰 WN 20-16 RF s=2.954-1101.T-6sch40sFM S=10mm-150

wn20(a)-16 rf s=2.954-1101.T-6sch40sFM S=10mm-150

A 21002.770)-2.(B)-16´=108=8600rj

WN25-300MN50-156 aa=60 s=3.7TDRF0-6

so400(a)-10fm21400-0.

SO150-300 G/

PL15(B)-16 RF b=2

PL 15-63 RJ0-1.0300-16

wn100(b)-25RFB)-160 RF

WN25-300 RF Sch40 K6 s

wn 20(