HG/T 20592  法兰盖 BL 80-10 RF77100-SR=5f-(b)-15

bL80-10RF77100-SR=5f-(b)-15

SO50B)-40 RF400.6/F0RF-000R7

SO 3 1/2"-150 RF f=1.8065-150h6 Sch40M S/60 RF)-1500RF

WN 100(B)-40FM80-1.4 RF=2-6r50-1.6 δ0F=3.615 WN4003-1

wn 1/2"-1500 rf/bpamp1200 s&-40fmsRFF=��

bl500(b)-25 fm/A=515 1200-1/