ultrasonic spot welder to weld the earloop of the face mask and weld the handle of the nonwoven bag. Mask ear-loop welding machine is widely used on welding belt of mask or respirator; velcro, handle of non-woven bags and so on 1,Features1.Smart design and easy for operation2. Can welding the ear-loops for disposable masks,inner/outside ear-loop masks,cup masks,duckbill masks and other sepcicial- ...