Certificate of Operation Management System
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លក្ខណៈវិនិច្ឆ័យបញ្ចូលទិន្នន័យ
Type 1: Conventional
Type 2: Conventional + incline Tube
Type 3: Solod contact clarifier
Type 4: Solod contact clarifier Combine
Type 5: Solod contact clarifier Rectangular
Type 6: Oxidation tank
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