which is better 3000w or 4000w metal laser welding machine

what is the best jewellery laser welding machine for welding yellow goldwhat power galvanometer laser welding machine do i need for nickel1kw laser welding robot for salewhich semi automatic laser welding machine is best for welding metal1000 watt semi automatic laser welding machine for aluminum alloycan a 4000w continuous automatic laser welding machine weld stainless steelwhich scanning laser welding machine is best for ic lead weldingprecision portable laser welding machinecan a 1500w portable handheld laser welding machine weld carbon steel1kw fiber laser welding machine for brass
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