Many wanted to join the coalition but had made difficulties in choosing the project and wondered what kind of industry and project to choose. Here, it is recommended that we could consider joining water purification units. The benefits of water purification shops are as follows: 1. Provision of quality water purification equipment: water purification stores offer various brands and models of water purification equipment that can meet the needs of different households or enterprises. 2. Professional installation services: water purification stores provide specialized installation services that ensure proper installation and proper operation of water purification equipment. 3. Regular maintenance and maintenance: water purification stores provide regular maintenance and maintenance services that ensure the long-term use and water purification of water purification equipment. 4. Rapid maintenance services: water purification stores provide rapid maintenance services to repair malfuncti...