Signature of leaders of grass-roots units: opinions or suggestions of leaders participating in activities: signature of leaders (contact persons): opinions that need to be answered by relevant competent departments and their implementation: signature of leaders of relevant departments: safety observation communication card: Class A: personal protective equipment ○ Person in charge: wear safety helmet and fasten headgear as required. When operating rotating equipment, long hair is in the helmet. ○ Eyes and face: Wear eyepiece or mask as required.