For telescopic window casement friction hinges, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our telescopic window casement friction hinges has been well received by many customers and enjoyed a good reputation in many countries. Degol Hardware Co.,Ltdtelescopic window casement friction hinges have characteristic design & practical performance & competitive price, for more information on the telescopic window casement friction hinges, please feel free to contact us.