2. Because ceramic knives have the characteristics of ultra-high hardness, ultra-high wear resistance and sharp cutting edge, their technical characteristics have reached or exceeded the performance of some metal knives and belong to dangerous goods. It is forbidden to carry all knives that may endanger the personal safety of passengers.

3. Choppers, knives, butchers, axes and other sharp and blunt objects that may endanger the personal safety of passengers; Baton, tear gas, tear gas gun, stun gun, nail gun, defender, bow, crossbow and other appliances.