ST590 is specifically for balancing double-planes hard bearing of permanent calibration. It designed as modular to keep the superior performance and improve the stability. The shape is simple and the operation is easy. In the manufacturing process,  using a large number of high quality components and materials to ensure that the overall quality of machine. This measuring unit is wide application and it features good performance, long service life, working with low environmental requirements and most users can meet the needs  of production.