im trying to track my package and it said null. what does.this mean. trackinh number is RB695493830C

Hi, it has no speific meaning. Just when the information on China Post of Chinese version is translated to English version, there is no equivalent expression, so it shows NULL. I just tracked to know your package was delivered to Shanghai Pudong Airport on Jul. 21st. It is normal. Don't worry!

Glad to tell you there is more information updated. Here it is:
"July 23, 2013, , Depart USPS Sort Facility, KEARNY, NJ 07032".

Thanks so much. Can you tell when will I receive my package

Generally, it may come to you within a week.