HG/T 20592  法兰 PL 250(B)-25 RF=3.466- RF/1/1220615 wn400

pl 250(B)-25rf=3.466- RF/1/1220615 wn400

WN80-150 RF SCH1190 R70-

WN200-600 FFCH40S C

WN20(B)-40rfF30-1.

wn80 b-16fm0Sc-

SO 400(B)-16 RF0-150

47023 m900-1.6 î´=64 h=142 dn=800

lwn20-300rf b=1443 M/ampampampampampampwd=&am

so15(b)-150 rf b=1916