1. This is the full tracking of your parcel:
China Post Register Air Mail Tracking System
Parcel No.RJ840860150CN tracking result
2016-09-21 15:35:11.0 Hangzhou city 萧山区commerical parcel dept. received
2016-09-21 15:35:30.0 Hangzhou city 萧山区commerical parcel dept. customs scan
2016-09-21 22:54:24.0 leaving Hangzhou city 萧山区commerical parcel dept. ，next station Hangzhou center
2016-09-22 09:17:09.0 Hangzhou Transit Station export security scan
2016-09-22 09:32:34.0 Hangzhou Transit Station export customs cleared
2016-09-23 09:34:00.0 arrive Shanghai Int'l Airport
2016-09-23 10:15:09.0 leaving Shanghai Int'l Airport going to next airport/seaport

2. When your parcel arrive in Brazil you will be able to track it through Brazil Post site.

3. You might want to read this for your country:
http://track-chinapost.com/China_Post_Arrival_Time_Stat.php

4. Your parcel is fine, you just need to wait for it.

Hope this help.