HG/T 20592  法兰盖 BL 65-16 FF100-16RF C==SH=2234S=8 RF N=80 B=52B

bl65-16ff100-16RF C==SH=2234S=8 RF N=80 B=52B

PL25-25M-RF S=80-1=19ch1601AH�1=1RF L=10508S C

WN 20(B)-40 FM220-3501-25RF00R h=800bfâ´=70 h=S=4m0MR

wn300(b)-300fmFF RFR410cs1500

47023 FM900-1.66S=26

wn15a-63rf1RF96.0f

LWN 20-300 RF SCH40S

A WN75