Bi.Link is a new decentualized crypocurrency pledge loan and exchange platform, which is 100% built on blockchain system, and has the exact same user experience as those centualized exchanges. It uses the "On-Chain + Off-Chain" order processing mechanism, which result in a good balance between security and efficiency. Bi.Link's pledge loan function has multiple risk control system, to make sure there is no risk for user's asset. And also the smart contracts will be audited by several famous blockchain security company. Bi.Link will always stick on the core spirit of blockchain, its trading-mine, profit-share and BINK buy-back will all be automatically executed by smart contract.