The main products include granite slabs, flat rulers, angle rulers, square rulers, V-blocks, parallel gauges, high-precision air floating guides, as well as mechanical components of precision instruments and equipment such as workbenches and guide gauges. And it can complete irregular machining such as drilling, slotting, and embedding metal parts on the workbench. Strictly follow the GB/T 20428-2006 rock flat plate standard and JJG117-2005 flat plate metrological verification regulation in the production and testing process of the product, and can provide domestic and foreign customers with granite measuring tools and granite mechanical components products produced according to different national standards, as well as assembly and debugging of the host.