Fresh water shortage is a serious problem, which restricts human development. Brackish water desalination can supplement fresh water resources. Extremely arid and natural fresh water-deficient areas are troubled by brackish water, such as the United Arab Emirates, Egypt, Saudi Arabia, Kuwait and other countries. XJY's RO reverse osmosis technology and EDI electrodeionization equipment help these countries solve water resource problems, realize brackish water desalination, improve local water quality, and solve drinking water hygiene problems.