E3S Web of Conferences

Economic analysis of two kinds of water heaters in service industry

Chunhua Liu, Yulei Zhao and Zhuangzhuang Qu

E3S Web Conf., 257 (2021) 02059

Published online: 12 May 2021

DOI: 10.1051/e3sconf/202125702059

Chunhua Liu

Yulei Zhao

Zhuangzhuang Qu

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