high speed drill stem

HHF is Chinese first factory which developed and mass produced Wear-resistant High Speed Mining Drill Stem. HHF selects Chinese most famous steel mill as raw materil supplier. Perfect forging, heat treatment, and CNC finished machining generate Chinese Best quality Wear-resistant High Speed Mining Drill Stem. Up to now, HHF Wear-resistant High Speed Mining Drill Stem have been exported to South Africa, Australia, USA, Canada,Brazil, Peru and India. HHF has built up a firm relationship with numerous world famous drill machine manufacturers and drill companies.