G A Instruments (P) Ltd.,
#47, Narayana Mudali Street,
1st Floor, Chennai - 600 079.
Tele Fax :+ 91-44-23465508 / 25363297 / 25389607 / 25382855 / 42620828,
Office Mobile : 99400 45093.
Email: dvi@vsnl.net

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