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mechanical contractor 于 柴灣
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The Hong Kong Federation of Electrical and Mechanical Contractors Limited
低層工業大廈的電力供應(例如兩層高貨倉) Electricity Supply to Low-rise Industrial Building Development (e.g. 2-storey warehouse) E&M Safety Walk and Carnival Fair 2015 Seminar on "Innovative Approaches for Enhancin…