Introduction: Langfang Sandao Filter Equipment Co., Ltd. was founded on February 19, 2022, with its legal representative Zheng Ruifeng, registered capital of 3 million yuan, unified social credit code 91131022MAC6AT5H9Y, and its business address is located at No. 8, Yongchang Road, Lincheng Village, Hot Spring Leisure Business Industrial Park, Gu'an County, Langfang City, Hebei Province. Its industry is specialized equipment manufacturing, and its business scope includes: general project: manufacturing of special equipment for environmental protection; Technical service, technical development, technical consultation, technical exchange, technology transfer and technology promotion; Sales of special equipment for environmental protection; Sales of mechanical parts and components; Sales of mechanical equipment; Painting equipment sales; Sales of special packaging equipment; Sales of new metal functional materials; Sales of gas compression machinery; Sales of gas and liquid separation and purification equipment; Seal sales; Sales of rubber products; Sales of plastic products; Sales of paper products; Retail of hardware products; Sales of chemical products (excluding licensed chemical products); Sales of packaging materials and products; Sales of office equipment; Sales of building decoration materials; Commodity sales; Sales of valves and cocks; Sales of metal products; Sales of intelligent power transmission and distribution and control equipment; Special equipment repair; Import and export of goods; Technology import and export. (In addition to the projects that need to be approved according to law, the business activities shall be carried out independently according to law with the business license).