I haven't encountered a limited number of boxes for the round-trip flight from Colombo to Shanghai in srilankan airlines. At most, there are four boxes, but I haven't seen them say there are restrictions.

There is no special requirement on the size of the box. In addition to the normal conveyor belt, there is an artificial passage at the end. But at that time, I asked the local people in Langka (equivalent to Little Red Riding Hood at domestic stations and airports) to help push Li, put him away after boarding the plane, and then you gave him money. It's 700 rupees, equivalent to 35 RMB.

Generally, the checked baggage is 30KG, including the baggage carried on the plane, and the baggage carried on the plane is at most 7KG. However, it seems that there is a lot of overweight money. Last time I was fined 180 RMB 1 kg.

I don't know much about things that are forbidden to be checked, but if they are found, you can slip him some money secretly or get away with it. Because it is a unique gem in Sri Lanka, I am afraid of being smuggled. This is the only contraband I know.

You can refer to the above, but although they are all Sri Lanka Airlines, after all, the flight time and destination are different.