Smart products have surrounded daily life, from the outer shell to the core, it is inseparable from the processing of precision mechanical parts. Before launching new products, companies that design smart products need to find a high-quality precision mechanical parts processing plant to cooperate, first to see the product design effect, whether there is room for improvement. The precision machinery parts processing plant with good service can guarantee the processing quality of the precision machinery parts of the products. Since the processing quality of precision mechanical parts produced by each factory is very different, it is very difficult to choose a precision mechanical parts processing plant.