How is the safety helmet graded? Red, white... On what level?
Red indicates that it is dying. White means no danger. Green means you are stuck
Red: conductorBlue: mechanical operation, special operations personnelYellow: ManagementWhite and other colors: ordinary workers
Safety helmets at construction sites have strict grades: the helmet of a general manager is much better in quality than the average worker. And there's a lot to say about the difference in color. In general, general project manager will wear red, very smooth texture safety helmet. The technician will wear a red hat; the safety officer is white; the electrician is wearing blue; the other type of work is red. There are different systems in different places.
