According to the Work Order Form for Heat Treatments.

The natural component of Cold Forming, Heat Treatment Furnaces of KBS are approved by TUV. KBS is able to fulfill every type of condition defined by international standards for, Stainless Austenitic, Carbon Steel, Duplex, Super Duplex Types are in accordance with the international standards.
KBS also performs workmanship Heat Treatments according to the Work Order Form for Heat Treatments of customers in its own Furnaces.