Jinan TMMT Stone Co., Ltd is the earliest one cutting mines and manufacturing stone building materials in China. One of the quarries was cut in 1958. We own 7 quarries and we are especially proud of Jinan Black--King of Stone, which is the most suitable granite for manufacturing surface plates and precision tools. TMMT STONE is a professional manufacturer of precision granite products.  
Since 1978 as the first and number one in China, we started precision granite surface plates. We not only make standard measuring instruments such as granite surface plates, straight edges, squares etc but also make variety of OEM granite for customers in many industry including CMM and optical / laser inspection systems. During the past 30 years, our products are sold worldwide to Germany, USA, Japan, Netherlands, UK, Italy etc, and TMMT has built very good reputation among our customers by first class high quality, quick communication and on-time delivery.