Zhejiang Kunhou Auto Parts Co., Ltd. is an enterprise combining industry and trade, and Haining R-Best Technology Co., Ltd. is its subsidiary. The company mainly produces riveted fasteners and rail transit fasteners, mainly including riveted nuts, riveted screws, riveted studs, and various anti-loosening fasteners for track laying. Materials include carbon steel, stainless steel, aluminum, copper, etc. The company adopts advanced production equipment, first-class technology, and almost automatic production flow. It can produce 8,000 tons of riveted products and 10,000 tons of rail transit fasteners annually. Continuous innovation, research and development, and unremitting efforts to make products based on high-grade and high-end markets, mainly exported to Germany, Japan, Spain, Italy, the United Kingdom, South Korea, Canada, and other dozens of countries.