Precision machining refers to an advanced process in materials processing technology, where the machining accuracy and surface quality are usually better than in ordinary processing technology. Precision processing technologies include, but are not limited to, the following:

1. ultra-precision lithography: it can be applied to the production of integrated circuits, microelectronic devices and optoelectronic devices, etc.

2. ultra-precision grinding: it is a technology that uses high-speed rotating grinding wheels to grind workpieces, and is suitable for processing various metallic and non-metallic materials, such as stainless steel, aluminium alloy and copper.

3. Ultra-precision Grinding: It is a technology of grinding workpieces by using grinding tools and is suitable for processing all kinds of metallic and non-metallic materials, such as stainless steel, aluminium alloy and copper.

4. Ultra-precision Turning: It is a kind of technology to turn the workpiece by using ultra-precision lathe, which is suitable for processing all kinds of metal and non-metallic materials, such as stainless steel, aluminium alloy, copper and so on.

5. ultra-precision milling: is a use of ultra-precision milling machine on the workpiece milling technology, suitable for processing a variety of metal and non-metallic materials, such as stainless steel, aluminium alloys, copper and so on.

6. ultra-precision grinding: is a use of ultra-precision grinding machine on the workpiece grinding technology, suitable for processing a variety of metal and non-metallic materials, such as stainless steel, aluminium alloy, copper and so on.

7. ultra-precision electric discharge machining: is a kind of use of electric spark discharge on the workpiece processing technology, suitable for processing all kinds of metal and non-metallic materials, such as stainless steel, aluminium alloy, copper and so on.

8. ultra-precision laser processing: is a use of laser beams on the workpiece processing technology, suitable for processing a variety of metal and non-metallic materials, such as stainless steel, aluminium alloy, copper and so on.

9. Ultra-precision ultrasonic machining: it is a kind of technology using ultrasonic vibration to process the workpiece, which is suitable for processing all kinds of metal and non-metal materials, such as stainless steel, aluminium alloy, copper and so on.

10. Ultra-precision electrochemical machining: a technology that uses electrochemical reactions to process workpieces, suitable for processing a variety of metallic and non-metallic materials, such as stainless steel, aluminium alloys, copper and so on.

These precision machining technologies have a wide range of applications, including aerospace, automotive manufacturing, electronics, medical devices, precision instruments and other fields.