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About product and suppliers:
        Alibaba.com offers 2,820 stem tube products. About 1% of these are steel pipes, 1% are plastic tubes, and 1% are packaging tubes. 

A wide variety of stem tube options are available to you, such as paper, aluminum, and plastic. You can also choose from 10#, 20#, and api j55. As well as from api, ce. And whether stem tube is structure pipe, fluid pipe, or oil pipe. 

There are 2,820 stem tube suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of stem tube respectively. 

Stem tube products are most popular in Africa, South America, and North America. 

You can ensure product safety by selecting from certified suppliers, including 557 with ISO9001, 283 with Other, and 78 with ISO14001 certification.