Çayırova Boru serves for over 35 years in the steel pipe sector with an annual 300,000 tons manufacturing capacity. Çayırova Boru manufactures oil pipes, natural gas pipes, water pipes, boiler pipes, general purpose pipes and structural hollow sections between 3/8” and 12 3/4“ diameter range via the latest technology with experienced and trained staff. It has a very large product range including Galvanize Coating, Polyethylene Coating, Epoxy Coating, Internal Concrete Coating, Paint and Varnish and similar protective coatings. Çayirova Boru has Quality and Manufacturing Management Systems that are registered by internationally reputable audit corporations.

Kroman Steel Ind Inc was established to produce semi-finished and finished iron and steel products and trade. The company is producing in total 300.000 m2 area with 110.000 m2 indoor facilities. Its total annual production capacity amounts to 1.6 million tons.

Yücel Boru produces construction profiles, special shaped profiles. Construction profiles include square & rectangular profiles. Special shaped profiles include oval, elips, D profiles, L, T, Z, I, X, hexagon, drops, railing section profiles.

Wavin Turkey is a leading firm in the Plastic Pipe sector in Turkey. The company has been presenting services of quality pipes, fittings and solutions in water management, heating and cooling, water and gas distribution and wastewater drainage. They offer a complete, competitive, innovative and sustainable portfolio to customers by setting the highest standards for safety and hygiene. Wavin Pilsa offers conventional pipe systems such as PPRC, Pex, Composite Pipe, PE 100 Pipes. Additionally, different value added products are also offered such as SiTech low noise systems, Quickstream Siphonic rainwater discharge systems, Tegra injections manholes, Tigris press-fit systems, Chemidro Underfloor heating systems, etc.

Trakya Döküm is a world class ISO/TS 16949 certified Disamatic foundry producing cast and machined parts in all grades of ductile, grey and malleable irons. The foundry has the latest in moulding technology to enable it to produce high volume casting requirements for high quality ductile, grey, malleable, high silicon and SiMo alloyed castings plus machined components within the weight range of 0,1 kg to 30 kg.

Sardoğan has been involved in production of butt-welded pipe fittings and flanges from carbon steel. Fittings and flanges with brand names of Sardoğan and SRD are manufactured under ISO 9001:2000 Quality Management System as well as certificate of Assessment of Manufacturer Material by Bureau Veritas. All the products in Sardoğan are accredited by the official notified body of Turkey, Turkish Standards Institution (TSE).