Corner Sofa Storage Hinge

Well fit to corner sofa both sofa bed and recliner furniture.
No gas spring used for safe reason.
Zinced finish for good looking.
Black color optional.
Heavy duty design.
Standard configuration 2 springs,but optional for 3 or 4 springs which depands on the weight of storage lid.
Storage sofa is contemporary and really meet the need of end users.
If take 2 pairs then this mechanism can apply for lift storage bed,because bed frame is more heavy than sofa storage lid.
Corner Sofa Storage Hinge