... laser marking machine(aluminum blocks triads)Working principle :Adjustable Q EP end-pumped laser marking machine ... fiber coupled semiconductor lasers, pumped high efficiency, long life, up to20000 ... of laser wave 1064nmRepeat frequency 0-100kHzMin spot diameter 2mmMarking speed ≤8000mm ... spare parts, instrumentation, aerospace, military products, metal machinery, tools, measuring tools, cutting tools, ...