LATTICE STRUCTURE-MILD STEEL -NTPC SIPAT-Main, LATTICE STRUCTURE-HIGH TENSILE STEEL -NTPC SIPAT- Main, LATTICE STRUCTURE-MILD STEEL- NTPC SIPAT Additional, LATTICE STRUCTURE-HIGH TENSILE STEEL - NTPC SIPAT-Additional, LATTICE STRUCTURE-MILD STEEL - NTPC SINGRAULI, LATTICE STRUCTURE-HIGH TENSILE STEEL- NTPC SINGRAULI
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