... . Mainly used for engraving of non-metal materials, such as rubber, ox horms, wood plexiglass, atomic materials, crystal, bowlder etc. ... small size artistic, For the engraving of patterns and characters on rubber, woodboard, bamboo piece, organic, glass plank and cloth, The ... 3. For the engraving of titles, types, signs, platterns etc , on electronic parts, which will last for long time. Mini laser ...