Watch as we walk through the full process, from initial setup to real-world testing. In this video, you'll see Guangzhou Tieqi Construction Machinery's professional remanufacturing of a Hitachi EX400-1 hydraulic pump assembly. We'll demonstrate our strict quality control procedures, assembly techniques, and testing protocols within our 4,000㎡ facility. Learn how we integrate China's top hydraulic supply chains to deliver reliable, high-performance solutions for global construction and mining fleets.