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About product and suppliers:
        Alibaba.com offers 566 dn 90 pipe products. About 72% of these are pipe fittings, 11% are plastic tubes, and 2% are steel pipes. 

A wide variety of dn 90 pipe options are available to you, such as saw, erw, and cold drawn. You can also choose from oil pipe, structure pipe, and fluid pipe. As well as from q345, api j55, and api k55. And whether dn 90 pipe is api pipe, or thick wall pipe. 

There are 566 dn 90 pipe suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Vietnam, and India, which supply 97%, 2%, and 1% of dn 90 pipe respectively. 

Dn 90 pipe products are most popular in South America, Eastern Europe, and Southern Europe. 

You can ensure product safety by selecting from certified suppliers, including 566 with ISO9001, 33 with Other, and 27 with ISO14001 certification.