GB/T 12459  弯头 DN 50-Ⅱ-Sch16090ES BB= C=

DN 50-Ⅱ-Sch160 90ES BB= C=

bl600-600rf hg/0S=10S=4-1

SO15(B)-16 RF b=3/0=105=2=19/ S=15/21F6150R条1

A 2000 h=40008130 H

WN80(B)-160FM,

WN40-300 RF5H=165

WN 50(B)-10 RF S=4

BI1000-600rj

WN80(A)-16Gâ25SCH40

HG/T20592-2009 PL65(B)- 10 RF Bs=80-=116