Changsha DTH Drill Co., Ltd.: 20-yr drilling expert, leading manufacturer of drills & accessories. 55,000m², 582 staff, Our technical team is headed by Professor Zhao Mingchun, top 2% scientist by Stanford. Strong R&D, products exported to 75+ countries. Range: water, mine, diamond core, reverse circulation drills, DTH tools. Suitable for mines, tunnels, wells, bridges. Designed for toughest rocks, ensuring efficiency & longevity. High-quality, cost-effective, sustainable solutions. Your trusted partner. Join us, explore possibilities, simplify drilling through innovation!