The paper roll are mainly use in the "window" service area, there are 0-99 or 0-999 number as service number when customer are q The paper roll are mainly use in the "window" service area, there are 0-99 or 0-999 number as service number when customer are queuing. We supply following standards: ZJ-A1000: 0-99, a total of 10 group of numbers ZJ-A2000: 0-99, a total of 20 group of numbers ZJ-A3000: ...