Ningbo Zongda Spring Co., Ltd. is nestled on the southern shore of the beautiful and prosperous Ningbo Hangzhou Bay Bridge. It is a national high-tech enterprise and a provincial "Specialized, Fine, Unique, and New" enterprise, established in 1993 with three decades of development history and technical accumulation. The company boasts over 15,000 square meters of factory space, employs over 200 staff members, and has 20 professional technical personnel. By adopting advanced foreign technology, it specializes in producing a variety of specifications of rowing machine fitness spring coils, tube benders; automatic expanding spring coils for various cables and tubes; vacuum cleaner springs, gasoline engine starting springs, various small home appliance winding springs, constant force springs, and contact and non-contact helical springs, elastic elements, and high-elastic heat-treated steel strips. These products are used in industries such as garden equipment, cleaning tools, large machinery and equipment, and home appliances, and are widely applied in domestic and international brands like "Philips," "Electrolux," "Panasonic," "Karcher," "Midea," "LeiK," and others. The company's sales rank at the forefront of the industry.

The company boasts a strong technical force. Our equipment includes precision shearing machines, fully automatic quenching and tempering heat treatment lines, with heat treatment hardness controlled within ±0.5℃ of HRC, high-precision fully automatic feeding and unloading machines, CNC forming machines, and more; our testing equipment is comprehensive, featuring Vickers and Rockwell hardness tests, fully automatic computerized torque and fatigue testing machines, etc. Over three decades, we have honed a robust management system, continuously absorbing the essence of domestic and international products, developing new products, and earning the trust and praise of customers. Our products are exported worldwide, and the company has been consistently recognized as a provincial contract-keeping and credit-worthy enterprise, as well as a Ningbo City credit-worthy enterprise. We are committed to advancing together with a wide customer base on the stage of the entire industry, co-creating a beautiful future.