... plate acrylic shield, protect the diamonds from scattering in the course of working, avoid of the waste, and save the cost.Operating principle ... it bonds to the cloth or the cladding.Technical Data of ultrasonic heat fixing machine1.Frequency: 35KHZ2.Supply voltage: 220V/(50 ... heat fixing machine is applied mainly to the hot fix of shoes, underwear, children's wear, T-shirts, embroideries, leathers, ...