Advantages and disadvantages of 3 polishing methods：

1. Chemical polishing: its advantages are low investment in processing equipment, polishing of complex parts, high speed, high efficiency, and good corrosion resistance. The disadvantage is that the brightness is poor, there is gas overflow, ventilation equipment is required, and heating is difficult. It is suitable for processing small batches of complex parts and products with low brightness requirements for small parts.

2. Electrochemical polishing: Its advantages are long-term mirror gloss, stable process, less pollution, low cost, and good corrosion resistance. Its disadvantages are high pollution prevention, large one-time investment in processing equipment, tooling for complex parts, help electrodes, and cooling measures for a large number of production. It is suitable for batch production, and is mainly used in high-grade stainless steel pipe fittings, export products, and tolerance products. Its processing technology is stable and easy to operate.

3. Mechanical polishing: Its advantage is that the processed parts have good leveling and high brightness. The disadvantage is that the operation process is more dangerous, the noise pollution is serious, and the complex parts cannot be processed. It is more suitable for processing simple parts and medium and small products.