[Features] ●No gaps in the joints, and the structure prevents dirt and dust from falling off. ●The inner frame can be attached to 4 sides of the outer frame. ●It is a support bracket specification. ●Speed hanger and speed holder shorten construction time. ● The free hanger is used for free mounting position. ●Can be installed on both lightweight steel base and wooden base.
[Applications] ● Ceiling inspection door for indoor use only.