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NF
Standard Number
A49-175 (Steel Tubes Plain end Longitudinally Welded Tubes for Pipe Lines and General use Austenitic Stainless Steel )
Grade TSZ2CN18-10 TSZ6CN18-09 TSZ3CNT18-10 TSZ2CND17-12 TSZ6CND17-11 TSZ6CNDT17-12 [ All grade ]