Mụtakwuo maka TronHoo na 3D Printing Shenzhen 2020 Ụlọ ntu No.: 2A512 Ụlọ Nzukọ 2 2020.9.2-4, Shenzhen Convention & Exhibition Center, China Na-atụ anya izute gị! Oge nzipu: Jul-17-2020