Shanghai Shengjin Industrial Co., Ltd. was established in 2018 and obtained 3C and ISO certification in 2019. The company has imported complete sets of state-of-the-art production lines and testing equipment from the United States, Japan, the United Kingdom, Switzerland, and other countries. The company also collaborates with numerous international research institutions on diamond tools. Using high-quality natural diamond industrial raw materials from both domestic and international sources, as well as hard materials …