Dn is 250, Pn25 flange, what is the hole distance?
Flange center hole distance d1=370mmFlange diameter D=425Aperture 30Bolt M27
Flange center hole distance d1=370mmFlange diameter D=425mmGB GB/T9113.1-2000
Flange center hole distance d1=370mmFlange diameter D=425Aperture 30Bolt M27