நீர்மூழ்கிக் கப்பல்கள் எவ்வாறு தயாரிக்கப்படுகின்றன- Submarine manufacturing

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Our Facebook Page:https://www.facebook.com/aayuthamseivom Our Twitter: https://twitter.com/aayuthum Our Telegramgroup : https://t.me/+MI7b6adhhZBkMWJl In this video, the process of Manufacturing a submarine is detailed explained in Tamil. Various Steps involved from Requirements , design and manufacturing components, assembling final submarine, testing , launch and training . What are the various factors that are considered. #submarine #indiadefencenews #tamildefense #tamilscience #tamil defense