... cups, hollow-sleeve cups, rippled/cor WT-30 Automatic Double Wall Paper Cup/Bowl Sleeve Machine Description: Model WT-30 Paper Cup ... equipment to make a second-wall sleeve over the inner-cup/bowl (cup/bowl finished by paper cup/bowl machine), wear a sleeve ... as photocell detection, failure alarm, counting etc.It makes double wall paper cup/bowl after running a whole procedure of automatic paper (fan ...