what wattage gold laser welding machine do i need for jewelry repair

is a jewelry laser welder good for welding silverreliable laser welding robotis a semi automatic laser welding machine good for welding red copper2000 watt portable laser welder for coppercan a laser mold repair machine be used for press die repair3000 watt portable laser welder for brassis a 200w three axis automatic laser welding machine enough for welding nickelwhich continuous automatic laser welding machine is best for welding stainless steel sheetbest handheld galvanometer laser welding machine for guardrail weldingbuy semi automatic laser welding machine for gold welding
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