- Hallmark Technical Srevice
- ea water reverse osmosis desalination system, brackish water reverse osmosis desalination system, water filtration / disinfection system, ultraviolet disinfection units, ozone generators, annual maintenance contracts for any ro plant.
- Address:Barka, Muscat, Other, Oma
- Sint Overseas Llc
- Generators, Radiators, Desalination Plant, Mechanical Products.
- Address:18th November Street, Opp to Chedi Hotel, Al - Ghoubrah Muscat Musxcat 111 Oman
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