同心异径管 DN 150×50-Ⅱ-7RCd=8

DN 150×50-Ⅱ-7 RCd=8

wn50(b)-16rf b=4F C=24°´çº0B/

SO50(b)-150 RF

pl32(a)-40 rf.6 /u00c3/u008

so40-300MB=G1.500 RJ S=6.3 02n=5-1RF S

WN20-600 RF D=117 L=19.1 A=2hg/fm s=3

PL 15(B)-16 RF=792

wn300(b)-100fm s=12

so80-300t60rf s=16 H=2058-

SO450(