GB/T 12459  偏心异径管 DN 800×15-Sch140RE-FF

DN 800×15-Sch140 RE-FF

DN 65×50-Sch10S RC

so500-300m/pampam

so250(b)-150ff B=144.5 C=228=145 a=4

PL 500(B)-6 RF8�‘┬

so80a-150RFch40Fe.16

wn150(b)-40m4/xRFa

wn25-150 ff3Æ150+)-25fms=/F00-2.2s=11.508

bL 150(B)-16 RFSch80SRCF BM S rf

DN25/P