... procedure of automatic pre-printed-fan-shape-paper feeding, two-step pre-heating, bowl-side-body sealing(ultrasonic wave), silicone ... -oil lubricating(for top curling), bottom punching, two-step bottom heating, bottom pre-folding, bottom knurling, top curling ... 20---50oz (mold exchangeable); Raw Material : One-side or two-side PE(polyethylene) film coated/laminated paper; Suitable paper ...