YALONG DIAMOND.YALONG DIAMOND, established in Zhengzhou, Henan in July 2001, is a high-tech enterprise specializing in the R&D, production, and sales of superhard materials such as diamond composite sheets and cubic boron nitride, along with their related products. Operating under a modern corporate model, the company has established comprehensive R&D, production, and quality management systems, maintaining technical collaborations with numerous domestic and international universities and research institutions. Guided by the principle of “Customer and Quality First,” YALONG DIAMOND is committed to becoming a leader in high-efficiency drilling and precision machining. Its core products include various superhard material tools for oil and gas drilling, geological exploration, and PCD/PCBN precision cutting, aiming to become the preferred brand globally in the drilling and precision machining industries.