Contraband refers to articles prohibited from being delivered by national laws and regulations, mainly including:

1, various weapons and ammunition. Such as guns, bullets, shells, grenades, mines, bombs, etc.

2. Various explosives. Such as detonators, explosives and firecrackers.

3, all kinds of flammable items, including liquids, gases and solids. Such as gasoline, kerosene, tung oil, alcohol, paint, diesel oil, aerosol, gas lighters, gas cylinders, phosphorus, sulfuric acid, matches, etc.

4. Various corrosive substances. Such as pyrosulfuric acid, hydrochloric acid, nitric acid, organic solutions, pesticides, hydrogen peroxide, dangerous chemicals, etc.

5. Various radioactive elements and containers. Such as uranium and radium.

6. All kinds of potent poisons. Such as thallium, cyanide, arsenic, etc.

7, all kinds of narcotic drugs. Such as opium (including poppy shells, flowers, bracts and leaves), morphine, ephedrine, heroin, marijuana, ice, ephedrine and other products.

8. Various biochemical products and infectious articles. Such as anthrax, dangerous bacteria and medical waste.

9, all kinds of publications, promotional materials, printed matter, etc. , obscene articles that endanger national security and social and political stability.

10, all kinds of articles endangering public health. Such as bones, animal organs, limbs, skin without nitrate, animal bones without drugs, etc.

1 1. Articles whose circulation, delivery or entry or exit are explicitly prohibited by national laws, regulations and administrative rules, such as state secret documents, national currency and counterfeit currency, securities, simulated weapons, controlled knives, precious cultural relics, endangered wild animals and their products, cigarettes, etc.

12, improperly packed. Articles that may endanger personal safety, pollute or damage other delivered documents and equipment, etc.

13. The delivery country (region) prohibits the delivery of imported goods.

14, other prohibited items.