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David Almy, Welding Engineer ― Miller Electric Mfg. Co.
Q: I have gas flow from the gun, but not a clean weld. How can I solve this?
A: Porosity and black welds indicate poor gas coverage or contamination.
Based in Wenling City, PONEY has established as a professional wholesale aluminum welding machines manufacturers engaging in the production of welding machine, cutting machine and car battery charger.
