GB/T 12383.6-1990 English PDF
Basic dataStandard ID: GB/T 12383.6-1990 (GB/T12383.6-1990)Description (Translated English): Ductile iron pipe blank flanges with raised face for PN 5. 0 MPa (50bar) Sector / Industry: National Standard (Recommended) Date of Issue: 6/23/1990 |