How to get robotic bay?

Hi friends steemit this time I will explain how to get robotic bay in the game Empires & Allies, how to get its somewhat difficult a little bit, if you want to know how to follow the following steps:

1.click on robotic bay building.

1. after open there are three options select as you wish.
   

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   1. to get robotic click buy cache, to get its robot you guys must have gold as much as 45 gold.
      

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      So much from me, thanks.
      May be useful.