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About product and suppliers:
        Alibaba.com offers 196,174 quality iso standards products. About 1% of these are valves, 1% are pipe fittings, and 1% are steel pipes. 

A wide variety of quality iso standards options are available to you, such as 10#, 20#, and a53(a,b). You can also choose from structure pipe, fluid pipe, and oil pipe. As well as from api, astm, and gb. And whether quality iso standards is erw, hot rolled, or cold drawn. 

There are 196,011 quality iso standards suppliers, mainly located in Asia. The top supplying countries are China (Mainland), France, and India, which supply 97%, 1%, and 1% of quality iso standards respectively. 

Quality iso standards products are most popular in Domestic Market, North America, and South America. 

You can ensure product safety by selecting from certified suppliers, including 45,026 with ISO9001, 16,287 with Other, and 10,890 with ISO14001 certification.