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About product and suppliers:
        Alibaba.com offers 472 double female pipe coupling products. About 92% of these are pipe fittings, 1% are shaft couplings. 

A wide variety of double female pipe coupling options are available to you, such as stainless steel, iron, and copper. You can also choose from coupling, union, and flange. As well as from female, welding, and male. And whether double female pipe coupling is equal, or reducing. 

There are 476 double female pipe coupling suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Turkey, which supply 94%, 4%, and 1% of double female pipe coupling respectively. 

Double female pipe coupling products are most popular in Mid East, Domestic Market, and North America. 

You can ensure product safety by selecting from certified suppliers, including 288 with ISO9001, 129 with Other, and 49 with ISO14001 certification.