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About product and suppliers:
        Alibaba.com offers 1,779 graduated tube products. About 21% of these are centrifuge tubes, 3% are packaging tubes, and 1% are school uniforms. 

A wide variety of graduated tube options are available to you, such as paper, plastic, and aluminum/plastic. You can also choose from adhesive glue, core, and food. As well as from free samples, paid samples. 

There are 1,775 graduated tube suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Vietnam, which supply 97%, 1%, and 1% of graduated tube respectively. 

Graduated tube products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 240 with ISO13485, 212 with ISO9001, and 141 with Other certification.