The minimum withdrawal amount per transaction for each currency is:
0.00035 BTC (0.35 mBTC)
0.010 ETH
0.05 BCH
0.14 LTC
115 DOG
10 USDT
25 XRP
Please note that minimum deposit values are driven by coin volatility and can change periodically.
As far as the maximum withdrawal amount per transaction for each currency goes, the following apply:
10 BTC
100 ETH
100 BCH
100 LTC
1,000,000 DOG
4,000 USDT
7,500 XRP.