HG/T 20592  法兰 PL 50(B)-25 RFJ)- 6RFrf/s2

pl50(b)-25rfJ)- 6RFrf/s2

PL258-16 RF

WN100-16RF SCH1RFRFFbf

BL200(B)-16M

B WN 32"-75 RF B=6

SO400-40 FMRF S=FF1=1901.0

3RF500-1.0RF))/Rch4053-

WN 15-900 RF660-0..RF0�5�@RF RJbР -R=8D¨B)-RF0RF8@R0 RF120.5-Rine�fm5.50rfh6rfrfR

lwn300-40