1. This is the tracking of your parcel:

Number: RJ845892358CN
Package Status: In Transit

Destination Country: Argentina
2016-10-30 18:00 China, Send item abroad (EDI-received)
2016-10-29 10:51 China, Insert item into bag (Otb)
2016-10-16 23:50 China, Send item abroad (EDI-received)
2016-10-15 16:09 China, Insert item into bag (Otb)
2016-10-13 02:28 China POST, Receive item from customer (Otb)

Origin Country: China
2016-10-31 04:09 Hangzhou airport, leaving
2016-10-31 04:09 Hangzhou airport, left hand navigation
2016-10-30 04:06 Hangzhou airport, arrival
2016-10-29 10:46 Yiwu Exchange Bureau, have been exported directly
2016-10-29 10:45 Yiwu Exchange Bureau, have been exported to open
2016-10-17 10:05 Shanghai Pudong, left hand navigation
2016-10-17 09:13 Shanghai Pudong, reach
2016-10-15 15:45 Yiwu Exchange Bureau, have been exported directly
2016-10-15 11:08 Yiwu Exchange Bureau, have been exported to open
2016-10-13 06:43 Directorate of international e-commerce, Yiwu city, away, the next station "Yiwu"
2016-10-13 03:01 Yiwu international electronic commerce branch
2016-10-13 02:28 Directorate of international e-commerce, Yiwu has been accepted
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2. For whatever reason your parcel had a hard time to depart from China to your country Argentina. But as of the:
2016-10-31 04:09 Hangzhou airport, leaving

It finally depart from China. It lost 18 days in China.

3. Now it will be up to the Argentina Post to scan the parcel on arrival or when they have time and give it to the Argentina Customs for clearance.

Hope this help.

1. May I suggest you look here for your country:
http://track-chinapost.com/China_Post_Arrival_Time_Stat.php

2. It can take from 19 to 48 days for your country.

Hope this help.