HG/T 20592  法兰盖 BL 350-100 RF�77.5 RJ10�sch40��schFBL450)-6RFF RF

BL350-100 RF�77.5 RJ10�sch40��schFBL450)-6RFF RF

WN2000-16 RF/ RJ10���77.5

WN80(A)-40RF S=4h1A=105 C=2230-1.0/136-2ch-16150R

WN 15-150 m0 RF S/WN2quoth

pl600b-40rfh80Sb)-1

pl 80(B)-6RFF

2 RF 800-1.05Frf s=10

WN 40(B)-16 RF2 H=55.6 N=4