HG/T 20592  法兰盖 BL 200-10 RF hg/0S=4.51= n=86/wn3J6/2.5 &a

bl200-10rf hg/0S=4.51= n=86/wn3J6/2.5 &a

bl80(B)-16 RFF/4

A WN 26"-150 RF S=9.52pampampam

BL200-900 RF Schfb=

47023 FM500-1.6/46-108FKMRFompa

BL100-150 FFs=16aff254hf

BL150-160RJS=5S=

47021 C-RF850-0.25/š&ampampRFS=6B)-

SO 80(B)-6 FF=04

bl1