Chengdu Heltec Energy Technology Co., Ltd. č. 16, Chenghong Road, Chenghua District, Chengdu, Sichuan, Čína jacqueline@heltec-energy.com 0086-028-83267289/+8618583756538 +8618583756538 - Manažer prodeje - Jacqueline Zhao E-mail: Jacqueline@heltec-energy.com Tel./WhatsApp/WeChat:+86 185 8375 6538 Nancy Shi E-mail: nancy@heltec-energy.com Tel./WhatsApp/WeChat:+86 184 8223 7713 Coco He E-mail: sales1@heltec-bms.com Alice Li E-mail: sales3@heltec-bms.com
