We hold strengthening and perfecting our items and repair. At the same time, we get the job done actively to do research and progress for rock drilling bits 12.25″, Rock drilling bits, drag pdc bit, Oil and gas drilling bits 311mm,water well drilling bit. Living by good quality, enhancement by credit history is our eternal pursuit, We firmly feel that soon after your visit we will become long-term associates. The product will supply to all over the world, such as Europe, America, Australia,Sudan, Lisbon,Philadelphia, Peru.We have a good reputation for stable quality products, well received by customers at home and abroad. Our company would be guided by the idea of Standing in Domestic Markets, Walking into International Markets. We sincerely hope that we could do business with car manufacturers, auto part buyers and the majority of colleagues both at home and abroad. We expect sincere cooperation and common development!