Henan Dongjin Precision Tools Co. , Ltd. is located in the Luohe demonstration area. The companyhas fully imported advanced powder sintering and precision electroforming diamond roller manufacturintechnology and technology, professional Development of high-precision Diamond Roller, diamond toolsdiamond measuring tools. Adhere to innovation and improvement, services in machining, bearinoprocessing, auto parts manufacturinq. tools and measuring tools, aerospace and other fields With the research and development of diamond rollers and high-precision processing capabilitieshas become a high-end customers to replace the import of excellent suppliers.