... 2.Diode pump laser 3.Mark on metal, plastic,rubber products 4.CNC control Metal marking machineSampleTechnical parameters Input voltage: ... , 2 -D code, etc. on metal or nonmetal surface (plastic, silicon or porcelain, etc.) which are precise, permanent, non- ... electronics,machinery industry, jewelry, glasses, auto parts, telecommunications products, plastic buttons etc. Metal marking machine with CE