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About product and suppliers:
        Alibaba.com offers 1,669 16mm pp pipe products. About 26% of these are plastic tubes, 10% are pipe fittings, and 1% are steel pipes. 

A wide variety of 16mm pp pipe options are available to you, such as pp, pvc, and pe. You can also choose from pipe, structure pipe, and gas pipe. As well as from api, gb, and astm. And whether 16mm pp pipe is 20#, 10#, or q235. 

There are 1,666 16mm pp pipe suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Vietnam, which supply 97%, 1%, and 1% of 16mm pp pipe respectively. 

6mm pp pipe products are most popular in Mid East, Domestic Market, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 483 with ISO9001, 178 with Other, and 45 with ISO14001 certification.