污水處理設備養護
Sewage Treatment
景觀空調設備檢測
View & Air Conditioner Equipment
建築物消防法規講習
Lessons of building laws
專有戶驗屋居家檢測
Home Inspection
滅火器檢修&換藥
Repain of Fire Extinguisher
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▌污水處理設備養護
廢水盤面檢測
污水浮球檢測
藥劑投擲
污水放流口檢測
