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About product and suppliers:
        Alibaba.com offers 202,429 one systems products. About 4% of these are pos systems, 1% are desktops, and 1% are water treatment. 

A wide variety of one systems options are available to you, such as home, commercial. You can also choose from free samples, paid samples. 

There are 202,429 one systems suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of one systems respectively. 

One systems products are most popular in North America, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 61,834 with ISO9001, 35,980 with Other, and 8,606 with ISO14001 certification.