Huawei Ascend and Mate series are flagship smartphone lines by Huawei. The Ascend line was started in early 2010s, continuing until mid-2010s and being replaced by Mate series in the second half of 2010s. The Mate line is still active in 2023 with the best-selling models being Mate 60, Mate 60 Pro and Mate X3.
You can find a complete list of both Ascend and Mate series here.