... OverviewDongguan Lihan Machinery Co., Ltd took the lead in the application of ultrasonic technology in the accessories industry ... &D design a newest product of advanced ultrasonic technology, the function is very outstanding. Using ultrasonic ... automatic rolling.Co-operate manufacturers: Shenzhen Jianli ribbon Co., Ltd, Shenzhen Hexin Co., Ltd, Fucheng Velcro Co., Ltd Ultrasonic slitting machine