No Sag Metal Zigzag Snake Shape S Spring For Sofa

                                      Products Descriptions 

Material: High-Carbon Steel (typically 65Mn in China, which is similar to 1065 or 1070 steel). This provides excellent springback,

 durability, and resistance to permanent deformation.

Wire Diameter: 3.8mm (This is a standard, heavy-duty gauge. Lighter sofas might use 3.2mm, while this 3.8mm is for robust,

daily-use sofa beds).

Surface Treatment:

Electro-Galvanized: A shiny, silver-zinc coating that provides good rust resistance for indoor furniture.

Phosphated (Black): A dark, matte coating that offers excellent corrosion resistance and is ideal for paint adhesion.

Function: To provide the primary suspension and support for the seat of a sofa bed, distributing weight evenly and allowing for the

 folding mechanism to work smoothly.