机电工程署客户服务中心已实行五天工作，业界可以邮递或透过电子方式递交申请。
The customer services office of the electrical and mechanical services department operates on a five-day week. Trade members can submit applications by post or electronically.
机电工程署客户服务中心已实行五天工作，业界可以邮递或透过电子方式递交申请。
The customer services office of the electrical and mechanical services department operates on a five-day week. Trade members can submit applications by post or electronically.
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