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About product and suppliers:
        Alibaba.com offers 709 pipe size dn products. About 46% of these are plastic tubes, 15% are steel pipes, and 14% are pipe fittings. 

A wide variety of pipe size dn options are available to you, such as api, jis, and astm. You can also choose from 20#, a53(a,b), and 10#. As well as from pvc, pe, and pp. And whether pipe size dn is erw, hot rolled, or cold drawn. 

There are 709 pipe size dn suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of pipe size dn respectively. 

Pipe size dn products are most popular in Southeast Asia, Africa, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 342 with ISO9001, 62 with ISO14001, and 37 with Other certification.