The registration address of the hengtai lantern plant in ching dynasty is located in the village of east anfung in chang dynasty dynasty, with the registration authority being the chang dynasty dynasty market supervisory authority, with the legal personality representing ma jianjian and covering general projects such as: the manufacture of lighting equipment; the manufacture of photovoltaic equipment and metaware; the sale of photovoltaic equipment and metaware; the sale of lighting devices; the sale of lamps; the manufacture of digital video surveillance systems; the sale of digital video surveillance systems; the repair of electrical equipment; the sale of electrical equipment; the management of urban and rural municipal capacity; the management of municipal facilities; and the management of engineering services (see also below). In addition to projects subject to authorization under the law, activities are carried out autonomously in accordance with the law and in accordance with the operating licence)。