MANUFACTURING, IMPORT, WHOLESALE, AND RETAIL (STORE) SALES. EN ISTANBUL We are honored to share our knowledge and experience of over 18 years of Construction materials with our valued customers. Our products are manufactured with superior technology and rigor and evaluated by our quality control teams and they are offered for sale after being determined to be suitable for sale. After many years of supply, we have been manufacturing important Construction materials for our company and we are one of the few companies that have achieved success in this short period.