High-Precision Jinan Black Granite Surface Plate (Grade 00)

This product is crafted from premium "Jinan Black" granite, processed through precision grinding and manual scraping techniques. Jinan Black granite is characterized by its dense structure, homogeneous texture, excellent thermal stability, and high wear resistance. With an extremely low coefficient of thermal expansion, it effectively minimizes the impact of temperature fluctuations on flatness, ensuring long-term stability and reliability.

Strictly manufactured in accordance with DIN 876 standards, this surface plate achieves an accuracy rating of Grade 00, with flatness deviations controlled within the micron range. It is ideal for precision measurement, layout work, machine tool inspection, and high-accuracy component testing. The working surface is finely ground to a smooth and even finish, free from scratches, rust, or other defects. Optional M6 threaded inserts are available for convenient mounting of fixtures or auxiliary tools.

Whether used in metrology rooms, laboratories, or production workshops, this surface plate provides a solid and precise measuring benchmark, making it an indispensable piece of equipment for high-quality manufacturing and inspection processes.