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About product and suppliers:
        Alibaba.com offers 3,703 50mm hdpe pipe products. About 53% of these are plastic tubes, 2% are steel pipes, and 1% are hdpe. 

A wide variety of 50mm hdpe pipe options are available to you, such as pe, pp, and pvc. You can also choose from free samples, paid samples. 

There are 3,703 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 Southeast Asia, Domestic Market, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 1,310 with ISO9001, 511 with ISO14001, and 344 with OHSAS18001 certification.