SQI is equipped first-rate geometric measurement instruments with high precision for length metrology, such as ZEISS coordinates measuring machine, OPG image measuring apparatus, Talyor Hobson roundness and cylindricity measuring instrument, Leica laser tracker, Leica Theodolite/Total Station, Moller autocollimator, Mahr length measuring instrument, TRIMOS length measuring instrument, IAC screw thread integrative measuring instrument and etc., which can meet kinds of precision measurement business requirements, serving domestic & overseas large enterprise such as Minnesota Mining and Manufacturing(3M), Shanghai Mitsubishi Elevator, Tektronix, SAIC Motor, Shanghai Aircraft Manufacturing Factory, China Eastern Airlines, Shanghai Turbine Company, Shanghai United Bearing Company and etc. In addition, SQI also has built cooperative relationship with domestic & international manufacturers and science & research institutes.