G.Y.HOPH STROVE TOOLS MANUFACTURE CO.,LTD (HOPH) mainly produces rock-drilling tools for mining\constriction\tunneling\quarrying and related industrials.HOPH has its own factories and laboratory,producing and quality monitoring for high-end rock-drilling tools.In order to strive to provide clients with more economical,more sturdy,more efficient solutions,Continuous R&D drilling steel and anti fatigue key manufacturing technology.HOPH inherits several decades' accumulation and techinal essence of Guizhou rock-drilling tools industry,and composed of core material experts of Guizhou province,production technology experts of the industry.HOPH maintain drilling industry leading quality through continually technological advance.Its sales engineers understand clients' drilling needs,and have the service skills to recommend the right drilling tools for the drilling.HOPH people always pursue the principle that we do the best service and do the high-quality rock tools.Integrity and quality first is HOPH's business concepts,and HOPH guarantee it will give its commitment to the clients.