"Railway passenger transport regulations" has corresponding provisions:

Article 64 The weight limit of each piece of luggage is 50 kilograms. The volume should be limited to fit in the luggage cart, but the minimum volume should be less than 0.0 1 (cubic meter). Baggage should be transported by train or in advance.

Money, securities, precious cultural relics, gold and silver jewelry, archives and other valuables, as well as articles and dangerous goods prohibited or restricted by the state, shall not be carried in the luggage.

Extended data:

Relevant laws and regulations on railway passenger transport stipulate that:

Article 70 Luggage and parcels are divided into insured transportation and non-insured transportation, and the shipper may choose one of them. When transported at insured price, it can be priced by piece or by the total number of pieces in a batch. When handling a batch, not only a part can be insured.

Check the insured cost of luggage and parcels transported at insured price. When one section is checked by baggage and the other section is checked by parcel, the insured fee is charged by baggage throughout the journey. Insured baggage and parcels will not be refunded if they change during transportation.

Article 73 The carrier may check whether the declared price of luggage and parcels transported at insured value is consistent with the actual price. If the inspection is refused, the carrier may refuse insured transportation.

Baidu Encyclopedia-Regulations on Railway Passenger Transport