... of machine automation, Production Process: Import Ontology film, Sideband feeding,cut the elastic short,/welding, Side bags, side-band welding, ... 2, The machines use up to four 1500w ultrasound system, Allows the dissolved to achieve the best most ... ends of edges is not more than 1mm,Machine features: the machine take Small floor space, all machines use ... use of glue. mask inner ear band welding machine