详细英文注册信息如下：
Domain Name: spml.cn ROID: 20240618s10001s58545742-cn Domain Status: ok Registrant: 周留伟 Registrant Contact Email: www@domainnames.com.cn Sponsoring Registrar: 北京资海科技有限责任公司 Name Server: 17ex1.dns.com Name Server: 17ex2.dns.com Registration Time: 2024-06-18 06:24:51 Expiration Time: 2025-06-18 06:24:51 DNSSEC: unsigned