With the increasing awareness of global environmental protection, the manufacturing industry is facing more and more strict environmental protection requirements, and precision metal machining and surface treatment services, as an important part of the manufacturing industry, are also actively promoting the research and application of environmental protection technologies. The traditional precision machining and surface treatment processes often produce a lot of waste water, waste gas and waste residue, which cause great pollution to the environment. Therefore, developing and applying environmental protection technologies has become an inevitable trend of the industry.

　　In terms of precision metal machining, environmental protection technologies mainly focus on reducing energy consumption and waste generation. For example, adopting high-efficiency and energy-saving CNC equipment can reduce energy consumption during machining; using dry cutting technology instead of traditional wet cutting can avoid the use of cutting fluid, reduce waste water pollution, and also reduce the cost of cutting fluid treatment. In addition, optimizing the machining process, improving the utilization rate of raw materials, and reducing material waste are also important measures to achieve environmental protection.

 
　　In the field of surface treatment, environmental protection technologies are mainly reflected in the development and application of environmentally friendly treatment agents and waste treatment technologies. Traditional surface treatment agents often contain harmful substances such as heavy metals and volatile organic compounds (VOCs), which are harmful to the environment and human health. Now, more and more manufacturers are using environmentally friendly treatment agents, such as non-cyanide plating agents, water-based coatings, etc., which can effectively reduce environmental pollution. At the same time, strengthening the treatment of waste water, waste gas and waste residue, and realizing the recycling of resources are also important links in environmental protection.

　　The promotion and application of environmental protection technologies not only meets the requirements of environmental protection policies, but also reduces the production cost of enterprises and improves their market competitiveness. In the future, with the continuous progress of environmental protection technology, precision metal machining and surface treatment services will move towards a more green and sustainable development direction, making greater contributions to the development of the green manufacturing industry.