what wattage open laser welding machine do i need for copper nickel welding

which is better 400w or 500w jewelry laser welding machinewhat wattage fiber laser welder do i need for dissimilar metal weldingcan a portable handheld laser welding machine be used for stainless steel kitchenwareis a portable laser welding machine good for door frame weldinglaser welding machine factory400w laser welding system for nickelbuy qcw laser welding machine for precision weldinghow thick can a 4000w laser welding robot weldis a 500w pulsed laser welding machine enough for welding copperbuy 4000 watt portable handheld laser welding machine
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