Granite material made of precision benchmark measuring tools, by strict physical testing and selection of granite material, crystalline fine, hard texture, the instrumentation, precision tools, mechanical parts of the inspection, are the ideal benchmark surface. Its superior to cast iron and steel made of precision measurement reference parts, can obtain high and stable accuracy. It is an indispensable tool for production in the field of ultra-precision machine tools and precision instruments.
Headquarter Add: Jiaheng Business Building B Seat 17d, hualong Rd.1825 Jinancity China East Star Factory Add: Cuizhai Jiyang County Jinan City China (No.45 Jibei Road) Nano Factory Add: Zhang Qiu Ming Shui Developing Zone, jinan City, china
