On the Yuanxiao (Filled round balls made of glutinous rice-flour for Lantern Festival) Festival on February 15, our engineer Liu Gong arrived in Changchun from Wuhu, Anhui Province in the wind and snow. It was already more than 1 o'clock in the morning. The weather in Changchun was more than 20 degrees below zero. The wind and snow still did not stop us from serving customers. In order not to delay the use, Liu Gong rushed from Changchun to Jilin City after less than 5 hours' rest. He arrived at the customer's company at 8 o'clock in the morning. He installed and debugged the customer step by step, trained the customer, and made samples. It was like repeated work. But different customers and different samples made the work full of challenges. Fortunately, the customer cooperation and Liu Gong's excellent technology made everything go smoothly. After completing the installation and adjustment at 1 pm, Mr. Liu rushed to the next destination covered in dust and wind. This was our day as service engineers, fearless of wind and snow, and dedicated to serving customers.