There are physical bitcoins. Basically, they are coins with private keys. They don't work well as currency because the value is generally less than the production cost, but people like to collect them.
Here is a good thread to read:
https://bitcointalk.org/index.php?topic=921095.0Thank you for that thread and answering my question before bitcoin become currency the country must make a production to make it equal to the market , sorry if you dont understand i just saying price and supply relations