рок буровой инструмент

rockdrilling tools,suitablefor the Mining, Quarrying, Coal-cutting, Road construction etc. GradeYG4.5 YG20 Various dimensions are available. By extrusion method,HIP sintered provides quality improvement to the finished products to ensure meterial reliability. We are a professional manufacturer ofcemented carbide products. Along with our company growth, we hope to build business with more companies abroad. If you have any questions or need any help, please feel free to contact me. I'd be glad to be of some help for you. We are ready to offer sample for your testing as starting of our cooperation. Welcome your inquiry!