Granite Box Performance:花岗石材料经过严格的物理 testing and selection, featuring fine crystalline structure and high hardness. As a non-metallic material, granite exhibits no magnetic response or plastic deformation. Its high hardness ensures good precision retention.

Granite square boxes are used for inspecting instruments, precision tools, and mechanical components. Crafted from underground rock layers, these boxes have undergone millions of years of natural aging, ensuring stable shape and no deformation due to conventional temperature variations.

Granite Square Box Performance: The granite material, selected and tested rigorously, features fine crystalline structure and hardness. As a non-metallic material, granite exhibits no magnetic response and no plastic deformation. Its high hardness ensures excellent precision retention.

Granite square boxes feature a black luster, have a dense and uniform structure, excellent stability, high strength, and high hardness. The work surface is processed using scraping or precision grinding techniques, suitable for measuring the straightness and perpendicularity of workpieces and for equipment installation.

Granite cube box accuracy: Even when subjected to heavy impacts during use, it may only lose a few stone chips. The granite cube box, being superior to precision measurement benchmark parts made of cast iron and steel, can achieve high and stable accuracy.

Granite cube boxes are made of Jinan Green granite, featuring a black luster, dense structure with even texture, excellent stability, high strength, and hardness. The working surface is processed using scraping or precision grinding techniques, suitable for measuring the straightness and perpendicularity of workpieces and for equipment installation.