Our store defines the following operations as dangerous operations:-1, aerial operations, operations that need to climb ladders or be suspended, and operations with a height exceeding 2 meters; –2. Live working is required; –3. Work at high temperature and stay in the environment above 35 degrees for at least 30 minutes; –4. Low temperature operation, cold storage operation for more than 20 minutes; –5. Hot work, electric welding and other operations using naked flame; –6. Other operations, such as hoisting operations, construction operations, entering towers and tanks, confined space operations, etc.