Welding Machine, Inverter Portable Welder, Welding Equipment manufacturer / supplier in China, offering Inverter DC Arc Welding Machine Zx7-300, Inverter DC Arc Welding Machine Zx7-315g, Inverter DC Arc Welding Machine Zx7-250 and so on.
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This is the procedure of aging machine. It is to load machine as it's working. For 10minutes. This is to make sure that the product can have good quality.