1. The only one enterprise in the world who adopts the first piece of "inert gases protection"quantitative blood collecting technology. 2. Adopting best quality materials glass tube and advance silicification technology, which avoids wall-attachment and hemolysis of blood cells 3. International general mark which is convenient to operate 4. Setting negative pressure which supplies correct quantitative blood collecting 5. Gum cork with double-concave protection lid, which is safe and dependable 6. Equipped with additive; complete varieties.
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