This is a special hinged cup for aluminum door frame. It uses thicker materials to improve load-bearing capacity and opens and closes smoothly. Thickened booster arm: 6-piece booster arm design, i is stable and not easy to break. Lengthen hydraulic cylinder: hydraulic buffer, improve bearing capacity. Straight nail fixation: Strengthen the fixation structure to ensure stability and firmness against falling off. There are three styles with full cover (straight bend), half cover (middle bend), and without cover (large bend). Choose the right hinge according to the situation of the cabinet., Manufacturer: Shun Yingtong