NB/T 47021  法兰 C-FM 1700-1.6/20δs=16 100i12mГ

1 CFM 1700-1.620δs=16 100i12mГ

BI530290

WN 559(B)-16 RFFS=8h404 C=2015h16000m0R0ch40-06

PL250-25RF7023 RF105M S=4.5

SO10(A)-16 Mh100040FMN

WN100(B)-63FM S=4-25rf/R100FM=6Sch40S0.60S S

47023fm1900-1.60(B)-6 RF/u04.006Cr19

PL80-6RF2sch80s/RF-1/5R

LWN