patent for invention
Sales Department (domestic business): 0536-7803888
Qingdao Branch (International Business): 0086-0532-67788333
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
