Berwanger & Co 3814 Black Rock Rd # B Upperco, MD 21155 Phone : (410) 374-5354 Berwanger & Co Business Category Plastic Extrusions Gaskets Plastics & Plastic Products (Manufacturers) Industrial Valves Valves & Pipe Fittings Manufacturers Pneumatic Equipment Components Manufacturers Industrial Instruments For Measurement Display & Control Of Process Variables