Ningbo Zhenqian Machinery Equipment Co., Ltd. is an advanced machinery equipment manufacturer that is honesty-based, quality-assured, and service-oriented. The company has its own unique production and manufacturing methods. Through rigorous scientific manufacturing standards and precise high-end manufacturing processes, it manufactures quality-assured machines and uses technology to make complex projects simpler. The company believes in technological innovation, pioneering and innovative, truth-seeking and pragmatic, strengthening enterprises with science and technology, and win-win cooperation. The company's main business: Automatic boring machines, automatic internal circle repair welding machines, CNC intelligent boring and welding all-in-one machines, sleeve pressing machines, pin pressing machines, etc. The products are widely used in: Shaft hole repair and various supporting tools in engineering machinery, mining, petrochemicals, metal smelting, geological exploration, large-scale mining, shipbuilding, steel structure and other industries. We can tailor-make various internal circle boring and welding processing equipment for you.