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        Alibaba.com offers 11,200 duplex stainless steel pipe products. About 50% of these are stainless steel pipes, 10% are flanges, and 1% are nickel. 

A wide variety of duplex stainless steel pipe options are available to you, such as astm, jis, and aisi. You can also choose from iso, bv, and sgs. As well as from seamless, erw, and efw. And whether duplex stainless steel pipe is 300 series, 200 series, or 400 series. 

There are 11,083 duplex stainless steel pipe suppliers, mainly located in Asia. The top supplying countries or regions are China, India, and South Korea, which supply 97%, 1%, and 1% of duplex stainless steel pipe respectively. 

Duplex stainless steel pipe products are most popular in South America, North America, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 7,859 with ISO9001, 1,728 with Other, and 1,378 with ISO14001 certification.