
Materials/Components Some instruments and meters are sourced domestically, and some are imported from the UK, Japan and Germany. Procedures/testing Details . All raw materials and components are subject to rigid metallurgical tests and only qualified materials are used. . All components processed in every manufacturing stage are inspected and tested strictly. . All our components are cleaned after grinding, and all the finished products are cleaned and dried several times. . 100 percent inspection and testing is carried out before packing, including noise and vibration testing, radial and axial clearance inspection.
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