Yanggu Haoquan Rock Tools Co.,Ltd is the professional manufacturer and exporter of Asphalt road planing bits,Excavating coalconical bits;Construction cutter bits for tunnling,trenching and drill Auger and rock drilling tools,we also supply the matched Tungsten Carbides products.We have many years exporting experiences in these field.We have very good relationship and reputation among our customers. We have very strong technical and producing experiences to make best quality tools.We are developing our business relationship with many Famous rock tools and Tungsten Carbide companies in world. We have approval IQNET AND CQM ISO9001:2000 Quality System Certificate.We assure that we will give you best quality products and service to meet your requests. » Read More