Tianyu Engineering School in Zhumadian City, Henan Province is a school approved by the government. There is no ordinary monitor for study time, ranging from several months to one year. Professional excavator schools have their own bases, and their qualifications are not clear. My relatives are studying there and can work now, but sometimes they are very tired. But his size is a skill, as the saying goes, skill does not overwhelm people. It's good to learn more skills. I hope I can help LZ.