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Room 3A12, Bldg. A, Lvdifenghui, Lane 168, Chengnan Rd., Huinan Town, Pudong New Area, Shanghai, China (Mainland)
Unbalance warning function auto land level survey instrument Laisai LS521II Laser red line, US $ 600 - 700 / Set, China, Laisai, LS521II.Source from Shanghai Hexin Survey Instrument Company Ltd. on Waimaotong.com.