HG/T 20592  法兰 SO 50(B)-25 T sn=/R=s=4.5 RJ°80S�A5 RJ0Ss5

a2200SO 50B-25 T sn=/R=s=4.5 RJ°80S�A5 RJ0Ss5

WN 65(B)-16 RF

WN 80(B)-160 RF s=6

3 RF500-6.4 Sch40Sf0rf†0l5600 RFLrf@40Fffrfh450J0SRFF@S5RF-200Rmx

WN 4-300 RF Sch40s

PL 300(B)-10 RF

WN 25-150 RF M600-0rf 500-1.6/

SO 150-150 RF

PL 100(B)-10 RF

PL