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Which is better, downstream navigation or SINO navigation?
We should not directly compare the navigation of downstream ships with that of Sino-Singapore ships.

1, Shunhang Tongdao Technology has a profound technical precipitation in GPS and has unique leading technical products. After years of technical accumulation, our company has developed two-in-one ship-borne GPS chart locator, three-in-one chart locator, AIS automatic identification system terminal, maritime satellite phone base, network locator and so on. , has created good economic and social benefits for users, and has been well received by users in various industries. In addition, our company also sells GPS receivers, antennas, marine radars, satellite phones and their recharge cards and other marine communication instruments.

2. Xiamen Cigna Technology Co., Ltd. is a high-tech enterprise engaged in embedded system and ship navigation equipment. The company integrates R&D, production, sales and service. The series of nautical GPS chart instruments developed by CMP, Xitu and XinHaiMa provide safe, reliable and easy-to-use nautical chart GPS navigation devices for China ships, which has technical advantages and broad market resources in the comprehensive application field of satellite positioning technology.