... Injector7. Vent Valve, Drain Valve8. Lifting Lugs and supporting feets STANDARD MATERIAL LISTNo.Parts NameMaterial1BonnetA105+ENP, ... , gate valves, globe valves, check valves, strainers, flanges and pipe fittings for petroleum, chemical engineering, metallurgy, light industry ... system, oil transportation, gas feeding, natural gas and long distance transportation pipes projects. The products diameter ...