德国采购需求：可定制、红外触摸显示屏、开放式触摸屏、定制、触摸屏电脑

I'm looking to source cost-effective touch screens for a self-order kiosk project I'm working on. I'm not interested in purchasing a complete kiosk since I prefer building it myself, but I do need reliable touch displays to make it functional. Could you provide me with pricing details for 22-inch and 27-inch touch screens? Additionally, it would be helpful to know about any specifications or features that might be available for these sizes. Thanks for your assistance!