Chengdu Heltec Energy Technology Co., Ltd. N. 16, Chenghong Road, distretto di Chenghua, Chengdu, Sichuan, Cina jacqueline@heltec-energy.com Tel. 0086-028-83267289/+8618583756538 +8618583756538 - Direttore delle vendite - 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 Lui E-mail: sales1@heltec-bms.com Alice Li E-mail: sales3@heltec-bms.com
