Hello Steemit users I select for you Top 10 big Cryptocurrency Exchanges Platform that you can use to buy or sell cryptocurrency :
1- Poloniex
2- Kraken
3- Bitfinex
4- Bittrex
5- OKCoin
6- BTC38
7- BTC-e
8- Bitstamp
9- CEX.IO
10- hitbtc
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