Chinese Factory Supply Anti Rust High Quality 3.8mm 4.0mm for Sofa Zigzag Spring

                                      Products Descriptions 

Understanding the Product: Heavy-Duty Anti-Rust Zigzag Springs

• Zigzag Spring (Sinuous Spring): A continuous, pre-bent wire spring that forms a "M" or "Z" shape. It is

•  the most common support system in sofa frames, providing the base foundation for cushions.

• 3.8mm & 4.0mm Wire Diameter: This is an extremely heavy-duty specification.

  • Standard Residential Sofas: Typically use 1.8mm - 2.5mm wire.

  • 3.8mm-4.0mm: This is reserved for commercial, contract, or ultra-high-end residential furniture where

  •  maximum durability, weight capacity, and longevity are required (e.g., waiting rooms, hotels, airports,

  • luxury home theaters).

• Anti-Rust (Corrosion Resistance): This is a critical feature. Over time, moisture from the air or spills can

•  cause internal springs to rust, leading to squeaking, fabric staining, and ultimately structural failure.

• Anti-rust treatment prevents this.