HG/T 20592  法兰 SO 80(B)-25 RF b=4

SO 80(B)-25 RF b=4

DN80/PN16/01A B1=91 D=200.2 L=18.5 C1=20.2

WN100(B)-63rf s=3 rf0

WN40-100RJs00(B)0051F0RJc1F3ampamp

HG/T20592-2009BL150-40RF

WN 25-150 RF Sch40S

1 FM 600-1.6 δs=20

LWN 25-300RF/BF Sch450 RF Sch40h4

so 600b-10 rf/l25-10rf135=

pl150