Balbachdamast South Africa: South African distributors of German-made Stainless Steel, Titanium, and Mokume Damascus. Stefan Diedericks Knife Supplies: 5610 Spring Steel, N690, 14C28N. BÖHLER Voestalpine: Suppliers of high-quality European knifemaking steels (N690, M390, Elmax, K110, K460) based in Pinetown. Batch heat treating services.