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When ordering, confirm:
✔ Material: Stainless steel (best for rust resistance) or carbon steel (cheaper).
✔ Size: Inner diameter (e.g., 5mm–15mm) and wire thickness (1.5mm–3mm).
✔ Load Capacity: 10kg–50kg per hook (depends on sofa bed design).
✔ Finish: Zinc-plated or powder-coated for durability.
If replacing broken sofa bed springs:
Measure the old hook (length, diameter, shape).
Use pliers to attach new hooks securely.
Test tension before final assembly.