GB/T 9117.5-1988 English PDF
Basic dataStandard ID: GB/T 9117.5-1988 (GB/T9117.5-1988)Description (Translated English): Hubbed socket welding steel pipe flanges with male and female for PN 5. 0MPa (50 bar) Sector / Industry: National Standard (Recommended) Date of Issue: 4/25/1988 |