Zhang Guodong: With 36 years of experience in design and construction cost work, he has published practical books and works on engineering cost in China, and is the first person in terms of the number of online video courses (please search for keywords such as “Zhang Guodong Cost”, “Dongliang Cost”, “Zhang Guodong Design”, “Dongliang Design”, “Zhang Guodong Editor in Chief”, “Dongliang Editor in Chief”, “Dongliang Studio Editor in Chief”, “Zhang Guodong Cost Editor in Chief”, and “Zhang Guodong Cost Editor in Chief Books” on various platforms for keyword verification).

Precast Round Ferrule

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