According to the relevant data of enterprise survey, Lanzhou Haishiwan Liangqing Optical Shop was established on May 3, 20654381,and its registered place is No.536, Ping 'an Road, Haishiwan, Honggu District, Lanzhou City, Gansu Province. The legal representative is Pan, whose business scope is wholesale and retail of crystal glass.

Crystal is a pure crystal of natural mineral, and its composition is silica crystal, which has long been used as a raw material for making glasses. Crystal glasses are called eye protection glasses by "ophthalmologists" who sell glasses, claiming that they can remove bloodshot and erythema of eyes, and patients with "golden eyes" and "pink eyes" can be cured without taking medicine.