# Fraxtal 桥

Fraxtal 的桥接过程源自  [Optimism](https://docs.optimism.io/builders/app-developers/bridging/standard-bridge)的设计。将资产从以太坊主网桥接到 Fraxtal（L1StandardBridge 和 L1ERC721Bridge）通常只需几分钟，而从 Fraxtal 返回以太坊（L2StandardBridge 和 L2ERC721Bridge）则可能需要 7 天。消息传递（L1CrossDomainMessenger 和 L2CrossDomainMessenger）也适用此情况。为了解决这一问题，Fraxtal 还提供了 Frax Ferry，大多数用户会选择使用该服务返回以太坊，仅需 24-48 小时，而不是 7 天。

* **Fraxtal 桥接 UI**: [访问 Fraxtal 桥接工具](https://mainnet.frax.com/tools/bridge/deposit)
* **Fraxtal 桥接文档**: [查看桥接文档](https://docs.frax.com/fraxtal/tools/bridges)

### Ethereum -> Fraxtal (\~几分钟)

| Type              | Contract               | Address (on Ethereum)                                                                                                 |
| ----------------- | ---------------------- | --------------------------------------------------------------------------------------------------------------------- |
| ETH/frxETH/ERC20s | L1StandardBridge       | [0x34C0bD5877A5Ee7099D0f5688D65F4bB9158BDE2](https://etherscan.io/address/0x34C0bD5877A5Ee7099D0f5688D65F4bB9158BDE2) |
| ERC721s           | L1ERC721Bridge         | [0xa9B5Fb84B7aeAF0D51C95DB04a76B1D4738D0eC5](https://etherscan.io/address/0xa9B5Fb84B7aeAF0D51C95DB04a76B1D4738D0eC5) |
| Messages          | L1CrossDomainMessenger | [0x126bcc31Bc076B3d515f60FBC81FddE0B0d542Ed](https://etherscan.io/address/0x126bcc31Bc076B3d515f60FBC81FddE0B0d542Ed) |

### Fraxtal -> Ethereum (7 days)

| Type              | Contract               | Address (on Fraxtal)                                                                                                  |
| ----------------- | ---------------------- | --------------------------------------------------------------------------------------------------------------------- |
| ETH/frxETH/ERC20s | L2StandardBridge       | [0x4200000000000000000000000000000000000010](https://fraxscan.com/address/0x4200000000000000000000000000000000000010) |
| ERC721s           | L2ERC721Bridge         | [0x4200000000000000000000000000000000000014](https://fraxscan.com/address/0x4200000000000000000000000000000000000014) |
| Messages          | L2CrossDomainMessenger | [0x4200000000000000000000000000000000000007](https://fraxscan.com/address/0x4200000000000000000000000000000000000007) |