详细英文注册信息如下：
Domain Name: piit.cn ROID: 20230531s10001s52764741-cn Domain Status: ok Registrant: 赵国华 Registrant Contact Email: zhao_gh@126.com Sponsoring Registrar: 广州云讯信息科技有限公司 Name Server: joy.dnspod.net Name Server: ball.dnspod.net Registration Time: 2023-05-31 15:30:42 Expiration Time: 2025-05-31 15:30:42 DNSSEC: unsigned