When selecting a high-quality CNC Machining manufacturer, the following aspects should be taken into account:

1. Enterprise scale: Choose a moderate-sized processing manufacturer to ensure both capacity and stability of quality and delivery time.

2. Equipment level: CNC machining requires high-precision equipment support, so it is necessary to choose a processing manufacturer with advanced equipment and mature technology.

3. Professional ability: The technical team of a processing manufacturer is crucial. It is necessary to choose a team with certain strength and experience that can provide professional processing solutions and technical support.

4. Quality control: The quality of the processed product directly affects the final product quality, so it is necessary to choose a processing manufacturer with a strict quality control system.

5. Service attitude: Selecting a processing manufacturer with a good service attitude and the ability to respond to customer needs in a timely manner can ensure the smooth progress of cooperation.

6. Reasonable price: Finally, consider the price factor comprehensively and choose a processing manufacturer with reasonable price and high cost performance.

In summary, when selecting a CNC machining manufacturer, it is necessary to consider factors such as enterprise size, equipment level, professional ability, quality control, service attitude, and price to ensure that a high-quality machining manufacturer is selected to meet customer needs and provide stable and reliable service.