The registration address of cheng drum ho cleaning services limited is located at the 2nd floor of the commercial city of shinyang village in the central garden of the wuyang village in cheng city. The registration authority is the market and quality control authority of the wu dynamite district, which operates on behalf of the legal person and includes cleaning services; the construction of waterproofing engineering works; the design of interior and exterior decoration works; the construction of greening of the garden; the construction of municipal engineering works; the management of the property industry; the maintenance of stone renovations; the maintenance of buildings; the conservation of greening works; and the sale of: cleaning equipment and cleaning agents. (projects subject to legal approval are not allowed to operate without the approval of the relevant authorities)。