In Huawei, each level is divided into three levels: A, B and C. The head or vice president of Huawei's first-level department is between 22c and 2 1b, the head of second-level department is between 20a and 20c, and the head of third-level department is between 19a and 19c, where 20a and 20c are opposite to the director of R&D..
Huawei is the world's leading provider of ICT (information and communication) infrastructure and intelligent terminals. It is committed to bringing the digital world to everyone, every family and every organization, and building an intelligent world with the Internet of Everything.