Located in Tianchang city, Anhui province, Tianchang Zhengjie Wire Drawing Die Factory is a professional manufacturer of diamond wire drawing dies in China. We have more than twenty years of experience in wire drawing die industry and have a great reputation in this field. A special technical team keeps adopting international advanced technologies to improve our products. We have the world's advanced optical fiber laser punching machine, laser caliper gauge, ultrasonic grinding machine, ...