Integrated with pre-installed snap-on buckles and elastic positioning pins, the spring unit can be directly fixed to the sofa frame without screws or professional tools. The installation process only takes a few minutes per unit, which is faster than traditional bolt-fixed springs. The elastic positioning design ensures a tight fit between the spring and the frame, preventing loosening or displacement during use. It is suitable for bulk installation in commercial scenarios such as hotels and homestays, as well as independent replacement by household users, greatly reducing installation labor costs and time costs.

The spring cover is made of UV-resistant and anti-aging polyester non-woven fabric, which can withstand thousand hours of strong UV radiation without fading or cracking, adapting to the intense sunlight in Africa and South America. The spring’s internal structure is designed with breathable channels to quickly discharge moisture, avoiding mold growth in high-humidity environments such as Southeast Asia’s rainy season. It also maintains stable elasticity in extreme temperatures ranging from -10℃ to 60℃, suitable for cold plateaus in South America and high-temperature deserts in the Middle East, realizing full-climate adaptation for indoor and semi-outdoor sofas.

The spring core is made of 70# high-carbon steel wire, a material widely recognized in the furniture industry for its excellent toughness and stable rebound performance—ensuring strong load-bearing capacity and resistance to deformation even under long-term frequent use. The outer cover adopts furniture-grade professional non-woven fabric, which is wear-resistant, tear-proof, and has good air permeability, effectively protecting the spring core from dust, moisture, and external friction. This classic and reliable material combination balances durability and practicality, perfectly meeting the basic performance requirements of sofa springs in household and commercial scenarios across Southeast Asia, the Middle East, Africa, and South America.