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About product and suppliers:
        Alibaba.com offers 22,619 din st45 steel pipe products. About 99% of these are steel pipes, 1% are stainless steel pipes, and 1% are mining machinery parts. 

A wide variety of din st45 steel pipe options are available to you, such as a53(a,b), 10#, and 20#. You can also choose from astm, bs, and gb. As well as from boiler pipe, fluid pipe, and gas pipe. And whether din st45 steel pipe is ul, ce, or iso. 

There are 22,669 din st45 steel pipe suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Turkey, and Australia, which supply 99%, 1%, and 1% of din st45 steel pipe respectively. 

Din st45 steel pipe products are most popular in Mid East, Southeast Asia, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 14,438 with ISO9001, 6,318 with Other, and 391 with ISO14001 certification.