CHANGLING.CHANGLING was established on December 4, 2006, with its registered office in Jiangyin City. As a large-scale manufacturing enterprise with independent intellectual property rights, it integrates industries such as hydraulic components, precision castings, and rotary reducers. Its main products include hydraulic central rotary joints, track tensioning devices, hydraulic valves, rotary reducers, and various precision castings, serving numerous industries including construction machinery, energy extraction, photovoltaic tracking, automotive manufacturing, home appliances, and industrial refrigeration. Building upon its foundry expertise, CHANGLING continuously expands its machining capabilities for castings. Simultaneously, starting with compressor castings, the company prioritizes developing high-tech casting applications for automobiles, high-speed rail, construction machinery, and new energy sectors. Key products include: hydraulic central rotary joints, rotary reducers, tensioning devices, slewing bearings, spring series, valve series, pins, and bushings.