We are offering ultrasonic mask loop welding machine.Ultrasonic mask loop welding including automatic welding and manual welding, automatic welding special designed for export enterprises .this model can preset the welding time according to different thickness, so that the fabric of the same thickness of same welding time, avoid the short-time welding of artificial control is not strong. And the long-time will damage the material.Materials:non-woven fabricnylon , chemical fiber clothglue-coated cloththermo plastic film. Usage:disposable mask, cap, clothingpve handbag.raincoat