Tower construction, maintenance and operation, etc. Lanzhou Tower Company, located in Building 4, Lanshihao Busca Enterprise Headquarters Base, Guazhou Road, Qilihe District, Lanzhou City, Gansu Province, was established on 20 14128 October, and its main business scope is tower construction, maintenance and operation. In 20021year, the base station tower project of Renheng International Landscape Tower contracted the base station room, power supply and air conditioning facilities, so Lanzhou Tower Company engaged in the construction, maintenance and operation of the tower.