GCN Makina is a CNC machining company based in Dilovası, Kocaeli, Türkiye. We provide subcontract manufacturing services using CNC turning, CNC automatic turning and CNC milling. We manufacture from technical drawings, 3D models or customer samples. Our production scope includes prototypes, low-volume custom components, series production, machine spare parts, and maintenance and repair components. Our machine park includes: • 10-inch CNC turning center • 8-inch CNC turning center • CNC automatic lathe • 4-axis CNC machining center We process steel, stainless steel, aluminium, brass, bronze, copper, titanium and engineering plastics including POM/Delrin, polyethylene and PTFE/Teflon. After machining, parts can be dimensionally inspected, deburred and cleaned for shipment. We welcome project-based production, CNC capacity support and long-term subcontract manufacturing cooperation with companies in Türkiye and Europe. For an assessment and quotation, please send your technical drawing or 3D model together with the quantity, material specification and requested delivery date.