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About product and suppliers:
        Alibaba.com offers 70,057 c iso standard products. About 3% of these are steel pipes, 2% are valves, and 1% are pipe fittings. 

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

There are 70,057 c iso standard suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of c iso standard respectively. 

C iso standard products are most popular in Mid East, Southeast Asia, and North America. 

You can ensure product safety by selecting from certified suppliers, including 22,644 with ISO9001, 7,199 with Other, and 3,558 with ISO/TS16949 certification.