Dalian Shenglong Machinery Co., Ltd. (DSL), founded in June 2005, is a manufacturer specializing in crawler undercarriage components for construction and mining machinery. DSL's main products include track groups, track link assemblies, track shoes, track rollers, carrier rollers, idlers, sprockets, and sprocket segments. Located at No.36, Xinggong Street, Xijiao Industrial Park, Wafangdian, DSL covers an area of 150,000m² and a construction area of 100,000m². DSL has fixed assets of RMB 310 million, more than 1,500 employees, and more than 60 middle and senior engineering technicians.

DSL has developed more than 20 series and more than 200 varieties of products with pitches ranging from 90 to 350mm and had the most complete product series, varieties, and specifications in China. DSL has provided products and services to many domestic and foreign OEM companies, such as LiuGong, XCMG, SANY, Zoomlion, Lovol, Caterpillar, Liebherr, TATA Hitachi, LISHIDE, HAITUI; DSL has exported products to more than 50 countries, such as Russia, Mongolia, and Brazil and established a large and stable market system in Europe, North and South America, Africa, and Asia.

The company has an annual production capacity of 300,000 track chain assemblies, 30,000 tons of track shoes, and 1 million pieces of “four wheels and one belt”. The sales of forged sprockets for 1-40 ton excavators have exceeded 1 million pieces, with zero quality complaints feedback.