(a) express contraband: 

1, it is difficult to estimate the value of securities and easy loss of valuables, such as Bill of lading, verification single, passport, quota license, permits, licenses, personal documents, drafts, * *, domestic or foreign currency (cash), gold and silver ornaments, artificial jewelry, mobile phone In 

2, inflammable, explosive, corrosive, toxic, strong acid and alkali and radioactivity of all dangerous goods, such as: matches, detonators, explosives, firecrackers, gasoline, diesel oil, kerosene, alcohol (liquid and solid), sulfuric acid, hydrochloric acid, nitric acid, organic solvents, pesticides and other included in the chemical industry publishing house of the "dangerous chemical product practical manual" chemical products. 

3, all kinds of deadly poison, anesthesia drugs and psychotropic substances, such as arsenic, opium, morphine, cocaine, heroin, marijuana. 

4, the national Act prohibits the circulation or shipment of goods, such as: artifacts, weapons, ammunition, simulation weapons, etc.. 

5, containing reactionary, obscene or indecent content of books, newspapers, pictures, publicity materials, audio and video products, laser disc (VCD, DVD, LD), computer disks and CDs. 

6, prevent public health, such as bones (including burned bones), without tanned skins, without medicine for animal bones. 

7, animals, plants and their specimens. 

8, difficult to identify the ingredients of white powder. 

9, private letters, etc.. 

(b) air embargo: 

1, threatening the aviation safety of the goods, means in air transport, may clearly endanger the health, safety or damage to property or substances. Mainly in the following categories: 

A, such as fireworks: explosives, detonating fuze, etc.; B: gas such as compressed gas, dry ice, fire extinguisher, storage pump (no discharge device, non refillable), life-saving device (automatic expansion); C: flammable liquid, such as paint, gasoline, alcohol, oil, camphor oil, turpentine oil, engine starting fluid, thinner, glue, perfume and so on; D, flammable solid combustible substances: water, release of flammable gas substances, such as activated carbon, titanium powder, copra, castor, rubber products, wood box (Quanhuo debris wipe or sheet wipe dry, dry white phosphorus), phosphorus, magnesium and so on; E, oxidants and organic peroxides such as: Potassium Permanganate; F, toxic and infectious substances such as: pesticide, lithium battery, G, tear gas; radioactive materials; H, corrosion products: such as storage battery, alkaline battery liquid. I, without product packaging, magnetic degaussing magnet with magnetic. 

2, any drug. 

3, other aviation contraband, such as: powder items (irrespective of color), liquid (no matter what kind of packaging), outer packing a danger sign of goods, there is no national audio and video publishing house proof of audiovisual products (including CD, VCD), tool, durian, with gas lighter, relates to the concept of "weapons" and "guns" any goods (including toys, etc).