2024 Korean Recycled Construction Resource Institute autumn academic conference
2024 Korea institute for Structural Maintenance and Inspection autumn academic conference
2024 Korea institute for Structural Maintenance and Inspection spring academic conference
2023 korea concrete institute autumn academic conference
2023 Korea Concrete Institute spring academic conference
2021 Korea institute for Structural Maintenance and Inspection autumn academic conference
Yoon Yong Sik's graduation ceremony at Hannam University
Summer lab uniform photography
Dinner for a graduation celebration
Congratulations on Hwang Sang Hyun's wedding
2021 Korea institute for Structural Maintenance and Inspection academic conference
2021 Korea Recycled Construction Resources Institute Academic Conference in Wonju
The graduation ceremony of Hannam University
Best Paper Award Ceremony
Hannam Concrete Lab Workshop
Korean Recycled Construction Resources Institute in Jeju HAEVICHI
A look at Asian markets in 2023