Welcome to Sino Survey Marine Service and Consultation CO.,LTD. Sino Survey Marine Service and Consultation CO.,LTD is an independent marine service company based in Shanghai, China. The company has branches or offices in Dalian, Tianjin, Qingdao, Zhangjiagang, Guangzhou, Nanjing, Shenzhen... And at the same time, the company is actively expanding its overseas market like Hong Kong, Viet...