Feature●▲Butt hinge is normally used for cabinet doors. They are very strong but cannot be adjusted once they are fitted.●▼For the connection of sofa back and back,●▼Adjustable sofa back height●▼Can not be disassembled at will●▼backrest and seat,Description
By gear operation,
Change the angle adjustment between the seat and the bed,
Easy to install,
Adopt gear opening and closing position card design,
Multi-angle, multi-range.