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About product and suppliers:
        Alibaba.com offers 808 o2 bar products. About 16% of these are gas cylinders, 14% are steel round bars, and 8% are oxygen jet. 

A wide variety of o2 bar options are available to you, such as oxygen jet, microdermabrasion machine, and medical gas equipments. You can also choose from acne treatment, pigment removal, and skin rejuvenation. As well as from plastic, steel, and composite material. And whether o2 bar is forged, cold drawn, or hot rolled. 

There are 809 o2 bar suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Italy, and Taiwan, which supply 91%, 4%, and 2% of o2 bar respectively. 

O2 bar products are most popular in Domestic Market, North America, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 239 with ISO9001, 103 with Other, and 90 with ISO/TS16949 certification.