MSS SP 25 Standard Marking System for Valves, Fittings, Flanges, and Unions
MSS SP 25 Standard Marking System for Valves, Fittings, Flanges, and Unions Scope: The markings specified within this Standard Practice serve to identify the manufacturer, the rating designation, materials of construction, and special service limitations imposed by the manufacturer. They are used for product identification and to assist in proper application. MSS SP 25 DPF free download






