HG/T 20592  法兰 PL 250-16 RF 3 FF0-4

pl250-16 rf 3 FF0-4

PL 200(B)-10 FF B=226/h=stf2)-1 RF Sc0F RF

BWN700-300RF B=672 SO RF-

PL 200(B)-10 RFRF52.3=23 f1=3 (b)-

BL32-6 RF C

DN50-PN10 WN RF50rf6534 LF b=5

PL 25(B)-10 FF)-63 FMF(b0 G-16RFrf8FB)/1.044

PL 25-16 RF0F.6500 RF5

HG/T20592-2009