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        Alibaba.com offers 241,699 black steel pipe products. About 28% of these are steel pipes, 2% are plastic tubes, and 1% are heat exchanger. A wide variety of black steel pipe options are available to you, such as 20#, 10#, and 16mn. You can also choose from api, astm, and bs. As well as from ul, ce. And whether black steel pipe is structure pipe, fluid pipe, or oil pipe. There are 241,557 black steel pipe suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Singapore, and Pakistan, which supply 98%, 1%, and 1% of black steel pipe respectively. Black steel pipe products are most popular in North America, Mid East, and Southeast Asia. You can ensure product safety by selecting from certified suppliers, including 68,868 with ISO9001, 38,162 with Other, and 11,705 with ISO14001 certification.
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