HG/T 20592  法兰盖 BL 600-16 RF H= H=1 d=92150RF H-1.6ELH4001150C

BL600-16 RF H= H=1 d=92150RF H-1.6ELH4001150C

bl100-16 ff d=155 k=120 S=.HGbEL1

47023 M1200-1.051

wn40(a)-40 rf s=5 14

so25(B)-2500RFBB=/f schnm.h Sch4406rj.0 RF RF

wn500-600rj 16

pl65(b)-16fm16 H=105

wn 250-300 rf s b=3F S=5S/=F6 RF-1.0

WN 25-4