Yihailong Marble Inspection Platform offers high precision, excellent quality, and stability. Marble inspection platforms, marble squares, marble straightedges, marble right-angle rulers, and more, available in various specifications and styles. For inquiries, please call 18998432400, Mr. Zheng. Marble (granite) precision measuring tools and instrument platforms are made from high-quality "Jinan Green" stone through mechanical processing and hand polishing. They feature a black luster, precise structure, uniform texture, excellent stability, high strength, and hardness, maintaining high precision under heavy loads and normal temperatures. They are also rust-proof, acid and alkali resistant, wear-resistant, non-magnetic, and non-deformable. Suitable for measuring tools in mechanical factories (common specifications: 300*400, 400*400, 600*450, 600*600, 630*600, 630*630, 500*800, 600*900, 1000*750, 1000*1000, 900*1200, 1200*800, 1000*1200, 1000*1500, 1000*2000, 1500*2000, etc.). The main mineral components of the marble platform are pyroxene, plagioclase, a small amount of olivine, biotite, and trace magnetite. With a black luster and precise structure, it has undergone billions of years of aging, resulting in a uniform texture, excellent stability, high strength, and hardness, maintaining high precision under heavy loads. It is used for measurement tasks in industrial production and laboratories. For more details, please call us. We are dedicated to serving you and look forward to progressing and improving together with you.