Position Adjustable Sofa Backrest Hinge

  Wholesale lockable sofa backrest hinge 240mm with positioning function, thick steel adjustable hardware for modular fabric & leather sofas, OEM customizable, free samples for sofa factories. 1. Built-in Lock Positioning Mechanism Unique locking structure enables fixed angle positioning after adjustment. The sofa back will not slide or rebound automatically, stably maintain your desired reclining angle. 2. Thickened Steel Structure, Strong Load-bearing Thick cold rolled steel support arms, double arm balance design. High load capacity, resistant to deformation under long-term heavy cushion pressure. 3. Two-tone Premium Surface Treatment Black electrophoretic fixed base + mirror chrome polished support arm. Anti-rust, scratch-resistant, elegant appearance to match high-end upholstered furniture. 4. Smooth Rivet Rotary Joint High-strength rivet connection, flexible rotation without jamming. Low-friction assembly ensures silent adjustment without abnormal squeaking no…