HG/T 20592  法兰盖 BL 40-100 RFS3╨SCH80m sf.6ampamp�@RF@4 180EL=2.3RF

bl40-100 rfS3╨SCH80m sf.6ampamp�@RF@4 180EL=2.3RF

WN80-300 FM B=77.4040

bl50-10 rf d=10

SO 2"-150 RF B=40

WN200-600 RJ Sch40s/0090R

BL 400-25 TS=17camp

BL 20-160 RF000-1.s

DN250-PN250 BL RF Ⅱ

WN100-300 RF B=155180=3×80-Ⅱ-3 TR S=2)

DN80/