IPHONE 4S - HOW TO KNOW IF MY IPHONE IS BEIJING OR CHINESE?

I recently bought iphone 4s black without packaging… I want to know how can i check if my iphone is beijing or chinese? It has the ios 6 software… The pinch to zoom option is smooth… Buth it feels light and like the backpanel is plastic how can i check if my iphone 4s is 100% apple product?

Added (1). I was going to say iphone from dubai. OR chinese… My mistake

Added (2). On the back it says designed by apple in california assembled in china model A1387 EMC 2430 FCC ID: BCG-E2430A IC 579C -E2430A

Hook up to itunes.

Beijing is a city IN China!
so all Beijing iPhones are Chinese iPhones.

Wtaf are you talking about! How to know if my iPhone is Beijing or Chinese. What the hell does that mean! YOUR QUESTION DOESN'T MAKE SENSE.

Can you give the IMEI of your info I give you all details about it