2020 Aquatech China (Shanghai), CN 2019 WETEX UAE, AE 2019 WEFTEC USA, US 2019 VIETWATER (Hanoi), VN 2019 Aquatech China (Shanghai), CN I-2018 VIETWATER (Hanoi), VN 2018 Aquatech China (Shanghai), CN 2018 GD Amanzi, CN 2017 VIETWATER , VN 2017 Aquatech China (Shanghai), CN 2016 Aquatech China (Shanghai), CN
