The company Chaoyang piling drills, precision casting process, with many years of casting experience and advanced equipment, strong technical force. Alloy using a scientific formula, a special heat treatment process, strong and durable, the product is used for railway, highway, bridge, water conservancy, electric power infrastructure, ensuring quality and cheap, the impact of good performance. Meanwhile, according to customer needs, to help OEM customers to non-standard impact drill, the majority of customers. Welcome to consult the discussion.