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About product and suppliers:
        Alibaba.com offers 9,892 dn pipe products. About 31% of these are plastic tubes, 24% are pipe fittings, and 14% are steel pipes. 

A wide variety of dn pipe options are available to you, such as 10#, a106(b,c), and 20#. You can also choose from astm, gb, and bs. As well as from hydraulic pipe, boiler pipe, and structure pipe. And whether dn pipe is api, ce, or ul. 

There are 9,892 dn pipe suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of dn pipe respectively. 

Dn pipe products are most popular in Southeast Asia, Domestic Market, and South America. 

You can ensure product safety by selecting from certified suppliers, including 8,470 with ISO9001, 1,255 with Other, and 1,149 with ISO14001 certification.