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Qingdao Megatro Mechanical and Electrical Equipment Co., Ltd.
Qingdao Lutai Steel Structure Co., Ltd.
Shandong Huaan Iron Tower Co., Ltd.
Qingdao Sinostro Technology Company Limited
Jiangsu Bosheng Steel Poles Co., Ltd.
Shandong Dingchang Tower Manufacturing Co., Ltd.
Qingdao Wuxiao Group Co., Ltd.
Zhejiang Debao Communication Technologies Co., Ltd.