Name: Chinese boiler manufacturer (zejvr670). Áudio original criado por Chinese boiler manufacturer. 国际友人来我公司考察燃煤蒸汽锅炉。International friends came to our company to inspect coal-fired steam boilers.
Uploaded: 2025-12-06T23:57:52Z
Duration: 11 s
Description: 国际友人来我公司考察燃煤蒸汽锅炉。International friends came to our company to inspect coal-fired steam boilers.