One of the exhibitors in the 4th Exposition on Green Construction and Energy Conservation introduces the latest technology on energy conservation to the Secretary for Development, Mrs Carrie Lam, and the Permanent Secretary for Development (Works), Mr Wai Chi-sing.
One of the exhibitors in the 4th Exposition on Green Construction and Energy Conservation introduces the latest technology on energy conservation to the Secretary for Development, Mrs Carrie Lam, and the Permanent Secretary for Development (Works), Mr Wai Chi-sing.
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