1. This is the tracking of your parcel:
Number: CP318512272CN
Package Status: In Transit

Destination Country: Poland
2016-11-16 12:08 BEIJING, Package sent
2016-11-12 14:20 International Postal System, Item posting

Origin Country: China
2016-11-17 00:51 Beijing airport and left
2016-11-17 00:51 Beijing airport terminal, left hand navigation
2016-11-16 22:12 Beijing airport terminal, arrival
2016-11-16 09:43 Exchange Bureau in Beijing, has been exported
2016-11-16 09:12 Exchange Bureau in Beijing, have been exported to open
2016-11-13 12:35 Shanghai Exchange Bureau, have been exported to each other (internal transit)
2016-11-13 10:13 Shanghai Exchange Bureau, have been exported to open
2016-11-12 17:14 Millennium Park Road post, left, next stop "Shanghai King Kong"
2016-11-12 16:52 Millennium Park Road post,
2016-11-12 13:20 Millennium Park Road post, has received send
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2. Your parcel in On Route/In Transit to your country Poland. Now it up to Poland Post to scan your parcel on arrival or when they have time to do it.

3. Please be aware that this time of year is the busies time for every Post Office in the World and mail is slow.

4. Just continue to track your parcel on the Poland Post site for any new movement. I suspect you are aware of this about your parcel tracking number starting with CP:

SAL: short for Surface Air Lifted. Ships, buses, and trains are used within the sending and receiving countries, but air transport is used between countries. Land and sea transport are used if there are no flights. Usually it takes 15 – 20 working days. The cost is lower than air mail.

Hope this help.