Zhang Yu (Tempered Film C-end Business Department): 18669781001

Manager song: 18653253918

Manager Xie: 16678683139

Manager Luan (Shanghai Office): 18621693323

Manager Zhang (Shenzhen Office): 18948768392

Address: plant 20, Tianhe Industrial Park, No. 252, Weihe Road, Qingdao Economic and Technological Development Zone