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About product and suppliers:
        Alibaba.com offers 23,452 stud machine products. About 8% of these are bolts, 5% are steel frame & purlin machines, and 3% are other metal & metallurgy machinery. 

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

There are 23,331 stud machine suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 99%, 1%, and 1% of stud machine respectively. 

Stud machine products are most popular in North America, South America, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 6,363 with ISO9001, 1,733 with Other, and 530 with ISO14001 certification.