... Face Mask MachineSouth Nekon tie-on type mask making machine adopt ultrasonic welding method,equipped conveyer device,put the semi-product ... size, deviation ± 1mm, it can effectively control the product length,6.High degree of automation, low requirement of worker ... processing of Automatic Tie-on Face Mask MachineSemi-product input ---band welding --- band cut off.Semi-product input Band welding Band ...