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QST TMT Tempcore Quenching Box

QST TMT Tempcore Quenching Box

There is no difference between TMT steel bars and QST steel bars. TMT steel bars are manufactured using Thermo Mechanical Treatment process which involves 3 stages – quenching (Q), self tempering (ST) and annealing. ie., QST + Annealing. So the more accurate term is TMT steel bars.


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