20 500MM BRASS BRAZING SOLUTION WELDING FLUX CORED RODS LOW TEMPERATURE WIRE ROD. Welding Rod Type: Brazing Rod. Product: Aluminum Welding Rods. 100PCS welding wire. Step 4: Use propane gas to weld s mall object, use industrial gas or induction heating device to heat and weld big object, natural slow cooling after welding.
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