The private company Stublina DOO (Stublina LLC – Limited Liability Company) was founded in 1993. Its production plants are located in Mladenovac, Serbia. Having so many years of experience in production, genuine technical solutions, modern design and the application of the latest production methods generated by its own human and material resources, provides a manufacturing based quality for wide product range of fittings for aluminum carpentry. Designing and manufacturing by following the determined technical specifications has enabled them to improve quality to a level which meets the highest international standards, thus obtaining verified certification issued by relevant accredited institutions. The fact that about 70% of this factory’s export is intended for the largest consumer markets such as Former Yugoslav Republics, Russia, Ukraine, France, Spain, Italy, and etc., indicates how highly esteemed is this factory.