According to the relevant provisions of the Announcement of the Civil Aviation Administration of China on Restricting Carrying Liquid Articles on Civil Aviation Aircraft:

Passengers on domestic flights in China can carry with them liquid articles (excluding alcohol) with a total amount of no more than 1 liter (L) at a time, and the excess must be delivered. Liquid articles must be opened for inspection before transportation.

Liquid articles include: all liquid, paste, paste, gel and spray articles. Such as mineral water, beverages, soups and syrups, creams, skin care lotions, skin care oils, perfumes, shaving foams and body sprays, toothpaste, contact lens lotions, gel products for hair styling and bathing, etc.

Extended data:

Relevant provisions on restricting air cargo:

First, it is not recommended to check baggage or checked items sandwiched in luggage.

Cash, valuable tickets, jewelry, precious metals and their products, antique calligraphy and paintings, computers, personal electronic equipment, samples and other valuables, important documents, travel documents and other items, as well as prescription drugs that individuals need to take regularly.

Two, need to obtain the consent of Air China before transporting goods.

1, precision instruments, electronic products and precision equipment

Audio, washing machine, refrigerator, computer, tape recorder, etc. Should be checked as checked baggage, and should have factory packaging or packaging that meets the requirements of China International Airlines. The above items are not included in the free checked baggage, and they should be charged according to the excess baggage.

2. Sports facilities

Children's firearms and ammunition should be checked as checked baggage, and the transportation certificate issued by the relevant department must be issued and checked with the certificate. This kind of articles should be packaged separately and locked, and approved by China International Airlines before consignment. The weight limit of ammunition checked by each passenger is 5 kg (gross weight).

3. Animals

Passengers who need to transport small animals (such as pet cats or dogs) please contact Air China. Passengers should provide animal quarantine certificates and valid certificates of entry and exit of small animals. Small animals are not allowed to be brought into the cabin and should be checked as checked baggage.

4, sharp and blunt

Medical instruments shorter than 6 cm (2.4 inches) and special sharp cutting tools and blunt instruments with blades above 6 cm (2.4 inches), including tools for production and life, such as kitchen knives, fruit knives, dinner knives, craft knives, scalpels, scissors and sickles. , should be transported as checked baggage and must not be brought into the cabin.

The official website of the Civil Aviation Administration of China-Announcement on Restricting Carrying Liquid Articles on Civil Aviation Aircraft

China International Airlines official website-Restrictions on the transport of goods.