Founded in 1923, it is one of the top ten brands of glasses, a famous trademark in Shanghai, and is well-known in the market for its exquisite optometry technology, leading the industry in the fitting and grinding of progressive lenses, and is an enterprise group specializing in the retail and wholesale of clocks, glasses and photographic equipment

Shanghai Sanlian (Group) Co., Ltd., founded in 1956 and affiliated to Bailian Group, is an enterprise group specializing in the retail and wholesale of clocks, glasses and photographic equipment. Its five major brands, Hengdali, Hengdeli, Wu Liangcai, Maochang and Guanlong, are all well-known century-old brands.

Sanlian Group firmly grasps the main business, adheres to independent operation, and maintains the advantages of professional talents and professional technology. The glasses profession is well-deserved in terms of scientific and technological innovation, and the scientific and technological innovation projects of optical lenses have obtained a number of patents. In addition to the advantages of the Liangheng brand, the watch refinement is an enduring magic weapon. A team of skilled professional repairers provides professional maintenance and refinement services for consumers to relieve their worries. Guanlong, a company in the photography industry, continues to take the professional high-end route, and brands such as Leica, which are specially designed for professionals, have a good reputation in the industry. At the same time, in today's transformation and innovation of digital technology, it fully reflects the advantages of professional and technical characteristics and launches digital one-stop innovation services.

Sanlian Group has first-class network resources and business performance in the domestic professional industry. The number of professional chains exceeded 300.