Manufacturers Standardization Society https://msshq.org/ https://maps.app.goo.gl/fpAM67uKdMDU3ZSy9 Manufacturers Standardization Society (MSS) is a globally recognized leader in developing technical standards for valves, fittings, flanges, and piping systems. Founded in 1924 by 38 manufacturers, MSS traces its roots to 1908 when the Va