HG/T 20592  法兰 WN 80-40 RF B=77.7

WN80-40RF B=77.7

HP-2 п╩п┴п

BL250-40 MF/

PL150-16 RF

SO 20(A)-16 rfп╩Б■░п═п▀п╙п╩Б■░Б■°п╦п╩Б■░п═п▀я п╩Б�

5WN300-150RF S=1

PL50(B)-16 RF BB=7/2.h

PL250-10FF 6RF40 c/0-

lwn150-150rf sc

PL150(