Yolbulan Demir Sanayi ve Ticaret A.Ş.
Karabük · Merkez
Yolbulan Demir Sanayi ve Ticaret A.Ş.
Iron and steel plus logistics since 1946; Karabük OSB mill and KARDEMİR product distribution network.
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Products
Billet and Wire Rod
Billet and coil/wire rod appear with deformed and round bar on the product list. Karabük OSB photos show the rolling-mill building marked YOLBULAN A.Ş. About names iron and steel as the core activity; the Gebze warehouse supports logistics. Billet and wire rod are the semi-finished items in that mill-and-trade programme.
Deformed Bar
The published range includes deformed bar, billet, round bar, wire rod, NPI/NPU/IPE/HEA/HEB sections, angles and rails. The Karabük OSB mill (Hamzalar Mevkii, Zobran Village No:8) is shown on rolling-mill photos. The company states it is a major KARDEMİR shareholder with priority offtake and a nationwide marketing network. Deformed bar is the reinforcing-steel item in that list.
NPI / NPU / IPE Sections
The product menu lists NPI, NPU, IPE (medium/wide), HEA and HEB beams and angles separately. The Karabük OSB rolling mill is published as the production site for this structural range. Yolbulan also states it markets KARDEMİR products nationwide. The section group is aimed at construction and industrial steel supply.