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About product and suppliers:
        Alibaba.com offers 56,191 16mm pipe products. About 39% of these are steel pipes, 14% are plastic tubes, and 3% are pipe fittings. 

A wide variety of 16mm pipe options are available to you, such as a53(a,b), 10#, and 20#. You can also choose from astm, jis, and bs. As well as from oil pipe, fluid pipe, and chemical fertilizer pipe. And whether 16mm pipe is ce, bsi, or ul. 

There are 56,191 16mm pipe suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of 16mm pipe respectively. 

6mm pipe products are most popular in Mid East, Southeast Asia, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 23,489 with ISO9001, 6,449 with Other, and 4,012 with ISO14001 certification.