The production process of mobile phone includes surface mount (SMT), single board function test (FT), assembly, whole machine test and packaging. Because the production process requires high precision, you must change into dust-proof and anti-static work clothes, shoes and hats before visiting. Looking forward from the entrance, the whole mobile phone assembly workshop can be described as "bright", and there is an intuitive feeling that there are very few staff! "At the earliest, a production line needed 86 workers. Now, due to continuous improvement, only 17 people are needed on the120m production line. " Huawei receives experts to tell the ring.

On the shelf opposite the entrance of the production line, discs like films are neatly stacked, which are the materials for producing mobile phones. When PCB enters the production line, it will first laser carve a QR code, so that it will have an "ID card". In the process of flowing through the whole production line until it becomes a mobile phone, every component will be scanned with a bar code. "The materials used in each mobile phone are provided by which upstream manufacturer and can be traced back." Huawei reception experts said, "Only through such strict procedures and strict testing can the quality control of mobile phones be improved to a high standard."

Huanhuan noticed that most of Huawei's production line equipment has adopted its own brand except for a few equipment such as single-board printing, dispensing machine and robotic arm.

28.5 seconds, which is the time needed to produce a well-packaged mobile phone at the end of Huawei's mobile phone production line. There are more than 30 such production lines in the southern factory, and the monthly mobile phone production capacity is about 2 million. On the wall of the production workshop, the most striking thing is not the slogan, but the employee commendation meeting for the innovation and improvement of production technology. This detail reflects Huawei's emphasis on continuous improvement.