In today's PLC market, foreign brands dominate. In this steadily and rapidly developing market, how can emerging domestic PLC brands grow faster? How can they gain wider acceptance from PLC users? We can see that ease of use and service quality are crucial, determining user satisfaction and the product's standing in the user's mind. Foreign brands, having entered the market earlier, have gained an advantage in product popularization. Leveraging their market share advantage, most domestic PLC engineers initially use foreign brands. This first-mover advantage leads many engineers to choose foreign PLC brands. While domestic brands may have a price advantage due to their scale and brand recognition, survey results show that price is not the sole determining factor, and its weight is relatively low. This explains why many domestic brands, despite their price advantage, haven't achieved significant market share breakthroughs. In contrast, Hollysys, a rapidly developing domestic brand in the PLC market, has invested heavily in product promotion and popularization. They regularly conduct free PLC technical training across the country. Furthermore, leveraging their location in Beijing, they have collaborated extensively with universities in the area, providing free training on their PLC products and their usage to university students, thus cultivating a large number of potential future customers. These activities have significantly reduced the learning curve for PLC engineers, and by focusing on addressing this challenge, they have gradually narrowed the gap with foreign brands in this area. Due to limitations in company size, apart from Delta and Hollysys, few domestic brands have large-scale customer service departments. Given the inability to compete with foreign brands in terms of the number of service personnel and service outlets, it is even more crucial to focus on the quality of each service personnel to ensure high-quality service. As manufacturers or brand owners, they cannot completely delegate service to agents; doing so would place the brand image entirely on the performance of the agents, which is extremely risky.