... 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 ... Size 16oz-35oz (mold exchangeable);Raw Material One-side or two side PE (polyethylene) film coated / laminated paper;Suitable ...