Jiashan Hongyan Technology Manufacturing Co., Ltd. is an enterprise integrating industry and trade, dedicated to the production of stainless steel, carbon steel and low alloy steel fasteners, such as non-standard special-shaped screws, high-strength standard screws, four-piece expansion screws, etc. The company is based on high-grade and high-end markets and mainly exports to dozens of countries and regions such as Europe, the United States, and the Middle East. Our fasteners are used in many fields such as construction, bridges and roads, photovoltaics, mechanical equipment, and auto parts factories.