a whole procedure of paper-feeding,bowl-fan-wall sealing,oiling, bottom punching,heating,rolling,rimming,rounding and tripping. ... ,40,45,50,60 OZ or other sizes.Row material: Single side(one side) PE(polyethylene) film coated paperSuitable paper weight: 170--450 ... ,Micro-controlled transducer,Step-less speed adjustment,Paper Bowl-fan-wall body sealed by heater,Paper Bowl bottom sealed by heater ...