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About product and suppliers:
        Alibaba.com offers 11,657 20mm hdpe pipe products. About 78% of these are plastic tubes, 9% are steel pipes, and 3% are pipe fittings. 

A wide variety of 20mm hdpe pipe options are available to you, such as pe, pp. You can also choose from free samples, paid samples. 

There are 11,657 20mm hdpe pipe suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of 20mm hdpe pipe respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 4,985 with ISO9001, 2,961 with ISO14001, and 2,231 with Other certification.