HG/T 20592  法兰 WN 250(B)-40 RF S=10

WN 250(B)-40 RF S=10

pl 15(B)-63 RF S=3/f sch/10 rfn

wn400-600rfX=N/ ذ

pl125(B)-2.5FF0A=7

PL150(A)-16 RF b=3

BL900-6RF D=1030

WN 500(B)-40 RF1asS)-rf t-1.0F3F2525

SOP FF 10K 80ARF0S-1038 f1=3 LRF

PL300(B)-10 RF=83 h=1

WN 65(B)-16 RF S=10G1F9211b=9RF