B. High-temperature protective shoes should have a non-slip design, not only to protect people's feet from injury, but also to prevent accidents caused by the operator being slipped.

C. Various high-performance safety shoes with different performances must meet the technical indicators of their respective protective performance, such as the toes are not bruised, the soles of the feet are not stabbed, and the insulation is required. But safety shoes are not omnipotent.

E. High-temperature safety shoes should be properly kept after use. Rubber shoes should be rinsed with water or disinfectant and dried to extend the service life.