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About product and suppliers:
        Alibaba.com offers 1,536 welding power source products. About 1% of these are switching power supply. 

A wide variety of welding power source options are available to you, such as smd led, timer. You can also choose from free samples, paid samples. 

There are 1,528 welding power source suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Singapore, which supply 97%, 1%, and 1% of welding power source respectively. 

Welding power source products are most popular in North America, Southeast Asia, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 378 with Other, 373 with ISO9001, and 63 with ISO14001 certification.