MarkLand Technology Limited

Unit1817, 18/F, Wing Hing Industrial Bldg , 83Chai Wan Kok St , Tsuen Wan , N.T.Hong Kong

Shenzhen Shenzhoudun Security Systems Co., Ltd.

Unit605,6/F , Building 17 ,Wenguang Industrial Zone,Chaguang Rd, Nanshan District , Shen zhen

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