Geological Exploration Companies Lists

Changsha Drilling Machinery Co., Ltd. (CTHC) Located in historic city: Changsha It is a professional manufacturer of drilling equipment diamond bits and diamond reaming; CTHC has the team of professional technicians as well as advanced production craftwork and excellent service system. Meanwhile, CTHC has established technical cooperation relations with Central South University and China University of Geo-sciences We are a collection of scientific research, processing and sales business. The c.....