Xiao min Dong

Certified Passive House Consultant

Maternal Science And Engineering

China Construction Eighth Bareau

Yangshan district in Xinyang

Phone: 0531-87963842

Initial by Exam

Certificate valid from May 21, 2019
Certificate valid until May 21, 2024
The certificate only applies to this person.

Examined by Beijing Emerald Architecture Science and Technology Co., Ltd. / Yao Yi at JI NAN, China