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About product and suppliers:
        Alibaba.com offers 190,369 square pipe manufacture products. About 38% of these are steel pipes, 9% are stainless steel pipes, and 3% are plastic tubes. 

A wide variety of square pipe manufacture options are available to you, such as 10#, 20#, and a53(a,b). You can also choose from astm, jis, and gb. As well as from structure pipe, fluid pipe, and oil pipe. And whether square pipe manufacture is api, ce, or ul. 

There are 190,034 square pipe manufacture suppliers, mainly located in Asia. The top supplying countries are China, Singapore, and India, which supply 99%, 1%, and 1% of square pipe manufacture respectively. 

Square pipe manufacture products are most popular in Southeast Asia, Mid East, and South America. 

You can ensure product safety by selecting from certified suppliers, including 72,966 with ISO9001, 27,949 with Other, and 11,611 with ISO14001 certification.