服务热线 Hot-line 【 400-770-9799，010-5908 1252】
客服邮箱 Mailbox for after-sale service 【 idc.service@sinooceangroup.com 】

办公地址 ：北京市朝阳区东四环中路56号远洋国际中心A座5层502室
Office Address: Room 502,5th Floor, Tower A, Sino-Ocean International Center,56 East 4th Ring Middle Road, Chaoyang District, Beijing, China