Focusing on the precise steering needs of pipelines, this copper elbow is made of high-quality electrolytic copper through multiple processes such as smelting, extrusion, forming and precision processing, ensuring that the overall structure of the pipe fitting is uniform and dense without defects such as sand holes and air holes. The 45° angle design adopts CNC machining technology, and the angle error is controlled within ±0.5°, which can flexibly adapt to pipeline layout of different space sizes, especially in narrow spaces such as machine rooms and suspended ceilings that require compact steering in air-conditioning refrigeration systems, which can greatly improve the rationality and aesthetics of pipeline layout. The pipe fitting adopts a thickened wall design, and the wall thickness tolerance is strictly controlled within ±0.1mm, which significantly improves the pressure resistance and service life, and the service life can reach more than 15 years under normal working conditions…