Nanjing Square Mattress Machinery Co., Ltd. (also named Nanjing Sifang Mattress Machinery Factory) was established in 1990. We are a specialized manufacturer of complete-line mattress & sofa spring equipment. Our present products cover 10 series and more than 60 models. Our present factory covers an area of 35,000sqm with a 14,000-square-meter workshop.Presently, our company is running strictly in terms of ISO90001:2000 quality system. Our products sell well not only in China but also far in Europe, South America, North America, Australia, the Middle East, Asia, Africa, and other countries and regions all over the world. Our products make us win customers' trust and recognition widely. Our annual export volume is increasing rapidly. Any of your contacts or visits is sincerely welcomed. We look forward to making cooperation with you in the near future!