Jiangsu Ruizhifeng Engineering Tools Co., Ltd., established in 2006, now mainly produces engineering tools, shield machine tools, pipe jacking machine tools, all kinds of milling knives. The company is the only one in the same industry, independently completed from material research and development, smelting, ingot slag to forging, heat treatment, fine turning and milling and obtained more than 10 patent certificates, and has established a whole set of strict internal quality control management system and passed ISO9001, ISO14001, and ISO45001. The company has from alloy tool steel H13 from smelting, refining, forging, ring forming, CNC metal cutting processing heat treatment and other independent production line, equipped with hardness tester, chemical composition analyzer, metallographic microanalysis, impact test, universal testing machine and other complete testing equipment, the quality control of the whole process of production has a guarantee for the quality of the product, at present we have successfully provided a full set of tool products and related accessories for the models produced by overseas and domestic shield machine manufacturers, foreign brands cover: Herrenknecht, Mitsubishi, Wirth, Kmatsu, Robbins, Ishikawajima etc.; In China, there are China Railway Equipment, Railway Construction Heavy Industry, CCCC Tianhe, China Shipbuilding Heavy Industry, Liaoning Sansan, North Heavy Industry, Liaoning Heavy Industry, etc. After a large number of engineering use proves, the performance of our company's products has fully reached or even exceeded the performance of similar imported products. The company's products have been widely used in subway, railway, highway, mining, water conservancy, municipal and other engineering fields. At present, it has provided high-quality products and technical services for many large and medium-sized well-known enterprises at home and abroad, established close strategic cooperative relations, and been well received by the industry.