HG/T 20592  法兰盖 BL 450(B)-6 RF B=

bl450(B)-6 RF B=

WN 50(B)-63 RF

PL 350(B)-10 RF

WN 80-150 RF Sch80

so150(b)-25t-S5RF1/rf

BL80-150 RF

WN 80-10 RF S=8twF@40S@4h60f40rFRLT47000ASï؟½orF/2@ RF5

SO 8"-150 RF

47023 C-M700-4.0 δ=64 H=150

WN 65(B)-63 RF S=50F5 RJ-1671@�606@b4пҝ