... mainly used in Various non-metal materials.Such as rubber,arcylic,plexiglass,bowlder, crystal, wood,plastic etc..This machine is used to ... : .Mainly used for engraving of non-metal martials:such as ox horns,wood,plexiglass, atomic materials,crystal,bowlder,etc.. .Applying for ... for long time. mark/engrave on surface on larger things.Such as automobile, furniture, wall, ground and so on.The details ...