• Ia Aperila 2021, auai i le Precision Casting Paranesi a Saina Foundry Association
• Ia Mati 27, 2021, Yungong Technology auai i le ". Le 9th China Wuhan Liangzhilong E-commerce Festival i le 2021"
• Aperila 21, 2021, Yungong Technolgoy auai i le 15th China Foundry Industry Innovation and Trend Conference
