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About product and suppliers:
        Alibaba.com offers 291 u bolt making machine products. About 49% of these are bolts, 27% are thread rolling machines, and 3% are screws. 

A wide variety of u bolt making machine options are available to you, such as free samples, paid samples. 

There are 287 u bolt making machine suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 94%, 4%, and 1% of u bolt making machine respectively. 

U bolt making machine products are most popular in Mid East, North America, and South America. 

You can ensure product safety by selecting from certified suppliers, including 123 with ISO9001, 36 with Other, and 8 with ISO14001 certification.