Our factory is a large casting enterprise, production and processing of solid, cross bits, drill bits and mechanical control of hollow casting, the product applicable to railways, highways, bridges, water conservancy, electric power infrastructure in the. 


 Solid alloy drill using a scientific formula, through a special heat treatment process, the impact of the product performance, drilling as soon as possible. Durable, quality and cheap. According to customer needs, to help customers to OEM products, the majority of customers. 


 Demand for manufacturers, please contact us.