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About product and suppliers:
        Alibaba.com offers 3,746 50mm hdpe pipe products. About 54% of these are plastic tubes, 6% are pipe fittings, and 4% are steel pipes. 

A wide variety of 50mm hdpe pipe options are available to you, such as free samples, paid samples. 

There are 3,746 50mm hdpe pipe suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Vietnam, and India, which supply 98%, 1%, and 1% of 50mm hdpe pipe respectively. 

0mm hdpe pipe products are most popular in Domestic Market, Southeast Asia, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 1,400 with ISO9001, 698 with ISO14001, and 504 with OHSAS18001 certification.