... , 3.auto feeding,sealing,cutting 4.compurter control FQ-D Model Roller T-shirt and Flat Bag Making MachineFeature:The high ... .Performance and Characteristics1. Controlled by computer, the stepping (servo) motor setting length system can largely reduces the errors of sealing-cutting ... there is anything wrong with the printing bags. FQ-D Model Roller T-shirt and Flat Bag Making Machine