Shanghai yoyi Electromechanical Technology Co.,Ltd                                                           Add :No.702 lingshi Road,shanghai,China                                                                                           p.c :200072
Phone:+86-21-56 65 73 53         Fax:+86-21-56 65 48 24                                      www.yoyi88.com                           mail:13818759766@QQ.com