Nanjing Luhe District Yiyuan Rain Flower Stone Factory is located in Huangzhong Community, Hengliang Town, Luhe District, Nanjing City. It was established in 2008 and is one of the leading domestic manufacturers of filter materials. The company mainly produces quartz sand filter materials, as well as pebbles, rain flower stones, adhesive stones, agate stones, etc. The quartz sand filter materials of the company come from local natural quartz mines and have the characteristics of firm texture, corrosion resistance, strong adsorption, no impact on the quality of filtered water, and long-term use without easy wear and breakage. They are widely used in water treatment, filtration, rust removal, glass, casting, ceramics, metallurgy, construction, chemical and other fields, and have continuously received high praise from domestic and foreign customers. The pebbles, rain flower stones, adhesive stones, agate stones, etc. produced by the company are also increasingly widely used in garden roads, artificial lake decoration, garden landscape decoration and other fields.

The company adheres to the business philosophy of "quality first, customer first", and follows the core values of "honest development and scientific production". It has introduced first-class production and testing equipment, built a complete quality and safety management system, and implemented advanced product and service standards. Some of the company's products are exported to Europe, America, South Korea, Japan, Southeast Asia and other countries and regions.