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 Východ. Naše upevňovací prvky se používají v mnoha polích, jako jsou konstrukce, mosty a silnice, fotovoltaika, mechanické vybavení a automatické díly.