OEM all kinds of tungsten carbide rotary burrs for mining equipment/DTH bits/PDC bits Cheap tungsten bullet weights

Changsha Huaxin alloy electric engineering Co., Ltd established in 1993,which have more than 20years history in tungsten carbide products research and development. Huaxin factory is more than 20,000square meters,annual production capacity is beyond 500 tons. Huaxin had got the ISO9000 Certification at 2000. Mainly products included tungsten carbide bits,carbide inserts,die and mold components and another wear parts which are widely use for rock drilling tools,coal-mining t...