sofa sleeper mechanism for hotel application

Description

Short rivets and flat to flat riveted for ***0cycles test and everyday operatiooon;
Rivetd anti-tilt system to secure the real safety when end users get up from the sleeper;
Heat-treated spring steel to allow people sit at the end of the sleeper without bending problem;
Solid rivets for cross bars connection in case of children play on the open bed;
Fire-proof and air breath polydeck base for safety and health;
Mattress is fully locked by side rails for seat comfort and the best location for cross body support wires to reduce sagging fir sleeping comfort.