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Patent of a Wastewater Treatment Device
Utility Patent for a Toilet Wastewater Treatment System
Patent of a Direct Drinking Water Seawater Desalination Device
Utility Patent for Factory Wastewater Treatment Equipment
Utility Patent for a Household Wastewater Filtration System
Utility Patent for an Oil–Water Separator for Hotel and Catering Wastewater
Utility Patent for a Rural Drinking Water Disinfection System
