RE-WRITTEN QUOTATION FOR DESIGN AND INSTALLATION OF MECHANICAL VENTILATING SYSTEM – 民生書院幼稚園

民生書院幼稚園

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RE-WRITTEN QUOTATION FOR DESIGN AND INSTALLATION OF MECHANICAL VENTILATING SYSTEM 網址資料

原始來源連結：http://drive.google.com/file/d/1Jk6XtmQScsYXiZl44Y5deyecj2mRDGxi/view?usp=sharing