Dear producer,It is nice to write to you. This is Vinay from India. I am interested in this style of Co2 Laser Tube 40W-for Laser engraving machine and in doing business with you.May I know more information about product such as:Type,Laser Type,Dimension,How long will it take to receive shipment by air?I hope we can cooperate in the near future.Thank you for your timeVinay Show More