GEE GROUP WUXI DRILLING TOOLS FACTORY CO., LTD. was founded in 1958, which is a state-owned leading enterprise in the geo-tech drilling and mining exploration industry for over half a century with good quality and rich experience in China. The main products we manufactured are listed as bellow: 1.China national standard coring drill system products 2. DCDMA standard products: A, B, N, H, Q series ,T2, T6 series impregnated diamond bit, PDC bit, surface set bit, drill rod, core barrel...