The registration address of tianjin retweeting walls ltd. Is located in the wuqing development zone of tianjin new technology industrial park. The registration authority is the market supervision authority of wuqing zone in tianjin city. The legal person is represented by the king and operates in areas such as soundproofing boards, automatic stretching doors, new bridge poles, fence manufacture, processing, sale, maintenance of soundproof walls, door and window manufacturing, processing, import and export of goods and rental of own houses. (projects subject to legal approval may not operate without the approval of the relevant department)