For fire door hinge grade, 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 fire door hinge grade has been well received by many customers and enjoyed a good reputation in many countries. HITO AUTO (HANG ZHOU) CO., LTD fire door hinge grade have characteristic design & practical performance & competitive price, for more information on the fire door hinge grade, please feel free to contact us.