Really!!!!!! Don't have a clue, do we? Well, here is a place to start. You should really try to think about your question before posting it.

American Welding Society - Underwater Welding

By doing welding work underwater .

Here's a tip, don't use an electric welder. Also,

http://www.google.co.nz/search?hl=en&q=underwater+welding&meta=&aq=f&oq=

How could you find CR4 on the internet but not try even a simple internet search to find your answer. Come on it's not rocket science!

hello,

yes there is a type of welding called underwater welding.but many dont know about it.it is the highest paid job in the world.it is done in many ways.chemical and electrical ways. u have heard of projects and work places underocean.there sometimes welding has to be done.it is done in a highly controlled manner.also it may not be doing in water too but may be in enclosed chambers.its a highly specialised subject.

thanking you

Underwater welding

http://www.twi.co.uk/content/ksdja001.html

http://www.google.com/cse?cx=010231287511253103195%3aqmfpcvv02be&cof=FORID%3a1&q=underwater+welding

S

corrosion prevention & control