What is the fine-grained topic of the following text: NEOTISS has a long experience in supplying titanium tubes for desalination applications with almost 30 000 km of tubes produced including tubes for the last biggest desalination projects as Ras Abou Fontas already in Qatar and Ras Al Khair and Yanbu 3 in Saudi Arabia. Only return the topic.
NEOTISS's experience in supplying titanium tubes for desalination projects