Geometric shapes of prohibition signs

The geometric shape of the prohibition sign is a circle with a slash, in which the circle is connected to the slash, in red; the graphic symbol is black, and the background is white.

Prohibition signs are graphic signs that prohibit people from unsafe behaviors.

Safety signs are divided into prohibition signs, warning signs, instruction signs and prompt signs.

There are 40 prohibited signs stipulated in the "Safety Signs and Guidelines for their Use" (GB 2894-2008): no smoking, no fireworks, no fire, no water to extinguish fire, no easy placement Burning materials, no stacking, no starting, no closing, no turning, no forklifts and motor vehicles in the factory, no riding, no approaching, no entry, no pushing, no staying, no passing, no crossing, no climbing, It is forbidden to jump off, stick out of the window, lean on, sit or lie down, step on, touch, reach in, drink, throw objects, wear gloves, wear chemical fiber clothing, Wear spiked shoes, it is prohibited to turn on wireless mobile communication devices, it is prohibited to carry metal objects or watches, it is prohibited to bring people with pacemakers or people with metal implants near them, it is prohibited to swim, it is prohibited to skate, it is prohibited to carry weapons and imitation weapons, it is prohibited to carry It is prohibited to carry flammable and explosive items, it is prohibited to carry toxic items and harmful liquids, and it is prohibited to carry radioactive and magnetic items.