what is the best silver laser welding machine for jewelry making

is a 3000w continuous automatic laser welding machine enough for welding copperis a 500w laser seam welding machine good for seam welding2kw handheld galvo laser welding machinecheap pulse laser cleaning machinewhat power fiber mold laser welding machine do i need for copperhandheld laser cleaning machine 1000 watt priceis a 150w open laser welding machine good for seam weldingdoes a robotic laser welding machine work on goldis a 1500w portable laser welder enough for welding brassis a 3000w laser welding machine enough for welding copper
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