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Calibration Laboratories > Dimensional > Screw thread gauges, API

    Tru-Thread Limited

    Calibration Laboratories / 0209

    Unit 3, Roman Park, Roman Way, Coleshill, Birmingham B46 1HG, United Kingdom
    Telephone +44 (0)1675 462193  Email [email protected]  Web http://www.tru-thread.co.uk

    NPL Management Ltd

    Calibration Laboratories / 0478

    Hampton Road, Teddington, Middlesex TW11 0LW, United Kingdom
    Telephone +44 (0)20 8943 7070  Email [email protected]  Web http://www.npl.co.uk