Contact
Headquarters
19F Tijng Lee commercial building , 91-97 Jervois Street,
Sheung Wan,Hong Kong.
Tel: +852 8174 6640
China Headquarters
1210 Longde Building, No. 371, Tianhe Road, Tian He District, Guangzhou, Guangdong Province, China
Tel: +86 20 8709 6253
Conatcts
QST Europe
Tel: +31 970 1020 4007
QST USA
Tel: +1 703 539 2939
QST Turkey
Tel: +90 539 540 44 37
China Factory
Xinyuan economic cooperating building, Xishan village ,Guangzhou，China
Tel: +86 139 2238 1808