HG/T 20592  法兰 PL 15(B)-10 FF k= rf k=2am0596-1/2.540 RFRF S0

pl15(b)-10ff k= rf k=2am0596-1/2.540 RFRF S0

WN 25-300 RF11562001M603F-150)-

BL65-6fm-150 RF6 RF8

so20(b)-16m b=4b=406/u009715-

WN40(B)- 40RF/w84h5Fs=4‚Fampampam

pl300-300 rf1

SO 40-300 FF-16 RF S=

so20B)-25rf1S=2.5Fsch400-4u2R-1F

WN350-300 RF Sc