HG/T 20592  法兰盖 BL 900-16 RF f1=3@F SJFRJsR059-1ุ5-30

bl900-16rf f1=3@F SJFRJsR059-1ุ5-30

WN 10"-1500 RF Sch140

5 CG 1650-0.620δ0=1M Sch

PJ/SE 500(B)-25 RF S=8

BL 300-900 RF18mxinvok/F0

BL25-600rf-11l50C

PL 25-10 RF C/B6 RF A=33.6RF6 RF

PL 80(B)-10 RF000-R.85p0 S=3.5@b=

BL40-63 RF,Ã2S= R11

WN30