HG/T 20592  法兰盖 BL 250(B)-16 FFP=60.њвХР—

BL250(B)-16FFP=60.њвХР—

wn 25-900rfsF/RF B1=N1000Rj10

SO 6"-150 RF

WN50(B)-63fm8f b=49/8

WN900(A)-10 M5FH=30825/t8232 C=10FF C-R/9-

BL 50-300 RF0Rj.6-6.4/210-3=12=n3

2 C10=144-250700 C00c3 HF

bL300(B)-16RFf31603b=1/R30-0.10 RF10RS=F S=1=16