GB/T 9124.1  法兰 DN100-PN2.5 PL FF Ⅰ 0M S=5 S

DN100-PN2.5 PL FF0M S=5 S

2 A16RF450(b)-14.0-300 RF Sch)-6

HG/T 20592-2009BL80-10RFFJ/FF0RF

wn50-160rj(b)=721Sch811

PL100(B)-16RF

3 RF 1600-4.0 δ0Sch40S/65

WN 250(B)-25 RF S=103fRFF0(5-

47023 -FM500-1-ch16¤â25SCH40

3 M 1200-1.6 δ0=16-

SO 2"-