NINVA.NINVA is a professional diamond products enterprise established in Beijing in 2022, specializing in the development and production of PCD (Polycrystalline Diamond) bearings and wear-resistant components. With over 20 years of process exploration by its team, the company possesses a profound understanding of diamond properties and has independently developed specialized electrical discharge machining (EDM) and laser processing equipment, establishing a comprehensive and efficient precision machining process. Its high-performance PCD thrust bearings, radial bearings, and other product series are specifically engineered to meet the challenges of petroleum exploration and other extreme environments. With outstanding wear resistance and reliability, these products satisfy the stringent demands of global markets. Currently deployed across Europe, the Americas, the Middle East, Russia, and China, the products have obtained ISO 9001 quality management system certification.