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        Alibaba.com offers 951 double wall casing products. About 43% of these are construction machinery parts, 30% are steel pipes, and 1% are mining machinery parts. A wide variety of double wall casing options are available to you, such as 16mn, a53(a,b), and 10#. You can also choose from api, gb, and astm. As well as from ce / eu, sgs, and ce. And whether double wall casing is drill pipe, oil pipe, or structure pipe. There are 946 double wall casing suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Turkey, and Taiwan, which supply 99%, 1%, and 1% of double wall casing respectively. Double wall casing products are most popular in South America, Domestic Market, and North America. You can ensure product safety by selecting from certified suppliers, including 85 with ISO9001, 17 with Other, and 16 with ISO14001 certification.
        
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