The Concentric Casing System is a high-quality product that we manufacture in our factory. It is a drill rod system that allows for the drilling of boreholes with a smaller diameter than the standard rod size. The system consists of two concentric drill rods, an outer casing, and an inner drill string. The outer casing provides support and stability to the borehole while the inner string is used for drilling. The system is designed to prevent the borehole from collapsing and to allow drilling to reach greater depths. Our Concentric Casing System is durable, reliable, and efficient, making it an ideal choice for drilling professionals. As a factory, we ensure that each system is manufactured using the highest quality materials and meets industry standards.