which portable laser welding machine is best for stainless steel furniture

what wattage mould repair laser welding machine do i need for mold sealing edge repairis a robotic laser welding machine good for welding goldis a 500w mould repair laser welding machine enough for welding hardened steel2000w portable handheld laser welder for red coppercan a laser welding robot weld high reflective metal600w jewelry laser welding machine for silver alloywhich portable fiber laser welding machine is best for welding carbon steelis a portable handheld laser welding machine good for railing weldingis a 150w sign letter laser welding machine enough for welding brassis a laser seam welding machine good for fine parts welding
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