The principal company Sigma NDT services which was incorporated in India in September 1997, to provide NDT services for fertilizer plants and pipelines. Today the Sigma NDT Group offers a diverse range of services for clients in the oil & gas, refining, petrochemical, energy, fabrication & construction and marine industries. Sigma NDT also manufactures certain NDT instruments.
Office No. 2A, 2nd Floor, Vantage Plaza, Plot No:1, L B Road, Chennai, India
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