Shenzhen city, chunheng instrument and instrument limited, works on wholesale importation of precision appliances, detection tools, grinding tools and grinding materials. To bring together products and technologies from all countries to address china's manufacturing needs. The chronology tools provide more than 1,000 complete testing tools and polishing equipment and consumables. From multiple size measurement programs, high-speed axes for fine processing, high-precision calibration calibrates for all planes, to mirror polishing machines, polishing brushes, grinding stones