... sheets, organic glass,copper,aluminum 2.1 year warantee wood engraving machine We have cr cr-l cte three cnc router models ... system, continuous accurate circle engraving function.4,Perfect intellective algorithm ,Working speed can be 9 m/min.5,Accept SD flash ... ,USB interface, plug and play, safe and stable.7,Unique body design, Integral steel structure.8,High speed frequency water cooling ...