100+ Water disinfection unit PowerPoint (PPT) Presentations, Water disinfection unit PPTs

Water disinfection unit - PowerPoint PPT Presentation

2. Product - Categorize product trend survey (2)

2. Product - Categorize product trend survey (2). Category of product trend survey. Major companies of Household water purifier*. Major companies of Portable water purifier. ? Searching website ? Under $20 ? Non-Electrical devices ? Exclusion chemical method. Companies of low-cost

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Water disinfection unit - PowerPoint PPT Presentation

2. Product - Categorize product trend survey (2)