Sofa Storage Box Hinge Lift Up Mechanism

Our sofa storage box hinge (box hinge) is a spring-assisted lifting mechanism specially designed for storage sofas, ottomans and storage bed boxes. The built-in tension spring helps lift the sofa top board effortlessly and holds the lid open securely. Made of thickened steel with anti-rust black coating, it delivers strong load-bearing performance. The sliding adjustable base allows 40mm adjustment range to fit different furniture sizes. Factory OEM & ODM available for sofa factories and furniture wholesalers. ✅ Thickened steel construction, anti-corrosion & rust prevention ✅ Spring-assisted lifting, easy open & stable support ✅ Strong load-bearing capacity, reliable for long-time use ✅ 40mm adjustable installation position, adapt to different furniture ✅ Pre-drilled mounting holes for simple installation ✅ Black powder coating for scratch and rust resistance Specifications Product Name: Sofa Storage Box Hinge / Box Hinge Material: Thickened carbon steel Surface Finish:…