Hello Seller, We are an importing company based in Italy. We are interested in your Vehicle Collision Avoidance System, so we contact you through Alibaba. here is the informations about the product that we need: Metal Type, Metal Ceiling Material, Color, what is the minimum order quantity? the desire to have a prototype to verify the performance, coz I need to use it in a different field. Can u send one piece in advance? Wish to hear from you soon. With RegardsAntonelloSIM NT srlquesto Message is from mobile phone Show More