... efficiency 3 CE,ISO900certificate PS Lunch Box Machine (TH1100/1250) make ps foam tray,burger box,fast food box,egg tray,bowl and so ... at high pressure. After extruding , foaming, cooling, shaping and hauling off, it is winding to finished ps foam sheet rolls. 2 ... of easily changing mould,counting accurately , cutting off quickly,it is widely used in many fields. PS Lunch Box Machine (TH1100/1250) CE