Another example of exporting prowess is TDSi, a small Dorset firm that designs access-control systems for offices, airports and rail networks.
ECONOMIST: Manufacturing and exports
Unlike Superior, TDSi does not make the stuff it designs.
This month TDSi won a contract to make control equipment, readers and software for 12 subway stations in Beijing, having already supplied kit for metro systems in Shanghai and Tianjin.
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