Shenzhen city acoustic engineering co. Ltd. Is located on the street of ping lake, yonggan district, shenzhen city the registration authority is the shenzhen city market supervisory authority, with a legal representative, dunfuwu, and includes the development of electronic products; the development and sale of acoustic paints, soundproofing paints, soundproofing materials, soundproofing materials, soft bags, soundboards; domestic trade; and the export of goods and technology. (c) the manufacture of noise-reducing equipment; the sale of noise-reducing equipment; the manufacture of insulation and sound-silient materials; the sale of insulation and sound-silient materials. (in addition to projects subject to legal authorization, the operation is carried out autonomously in accordance with the law.) the processing of acoustic paints, sound-silient paints, sound-silient materials, sound-silient materials, software packages, sound-sorting boards; the spraying of inorganic fibres; the spraying of glass fibres; and the spraying of plant fibres and their installation on the door. Construction works; construction design. (a project subject to legal approval may only be carried out with the approval of the relevant department, subject to the approval documents or licences of the relevant department)