Forbidden articles? Guns (including all kinds of offensive weapons such as simulated toy guns and gun lighter glue), ammunition, ordnance, police equipment, controlled knives (any knives), explosives, inflammable and explosive articles, highly toxic articles, radioactive articles, corrosive articles, dangerous solutions and other prohibited articles stipulated by the state. Professional knives such as scalpels, butchers, meat cutters, knives, spears, swords and halberds used by literary and art units, as well as axes, chisels, hammers, awls, weighted or spiked canes, and iron-tipped trekkers can all be checked as luggage. From 200 1, 1 and1,the civil aviation department allows passengers to carry daily-use knives with a length of less than 4 cm, and life knives such as fruit knives, scissors and men's shaving blades must be put into checked baggage or handed over to the airport security department for temporary storage.