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About product and suppliers:
        Alibaba.com offers 70,372 diameter product products. About 3% of these are plastic tubes, 2% are steel pipes. 

A wide variety of diameter product options are available to you, such as q235, 10#, and a53(a,b). You can also choose from api, astm, and jis. As well as from structure pipe, fluid pipe, and gas pipe. And whether diameter product is hot rolled, erw, or cold drawn. 

There are 70,372 diameter product suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of diameter product respectively. 

Diameter product products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 19,056 with ISO9001, 8,301 with Other, and 2,884 with ISO14001 certification.