... knurling,top curling,and passCE DB-L12 paper cup forming machine is multi-station automatic machine. It has continuous automatic procedures like ... convex knurling, curling, unloading, etc. It is ideal equipment for producing paper testing-drinking cups, market cups, advertising cups, etc. It ... widely used for hot drink and some beverage. If you want to make one side (single) PE coated paper cups, we ...