详细英文注册信息如下：
Domain Name: huaikai.com.cn ROID: 20240513s10011s97897889-cn Domain Status: ok Registrant: 周用棋 Registrant Contact Email: m0vho1m@21cn.com Sponsoring Registrar: 北京光速连通科贸有限公司 Name Server: dm2.dns.com Name Server: dm1.dns.com Registration Time: 2024-05-13 04:05:18 Expiration Time: 2025-05-13 04:05:18 DNSSEC: unsigned