Sales Department (domestic business): 0536-7803888

Qingdao Branch (International Business): 0086-532-88881398

Email (International Business): elaine07@sdlonggang.cn

Enterprise management department: 0536-7709555

Human resources department: 0536-7775222

Fax: 0536-7709555

Company email: wflgjt@163.com

Postal address (company headquarters): No. 6, Changlong Road, Liutuan project area, Changyi City

Postal address (Qingdao Branch): room 319, building 4, No. 1068 Jinshui Road, Licang District, Qingdao