... kind of safe weld method Technique specification:(ultrasonic welding machine nonwoven) ModleLK1532Output Power3200WFrequency15KHzInput VoltageAC Single Phase, ... USB connectors,Bluetooth. Toys,stationery: folder, album, folding boxes,PP hollow board,pen loops,ink cartridges, toner ... times per second between contacting plastic part and plastic part or plastic part and metal part to weld both parts on a ...