... toy guns, water guns, telephones, toys and general plastic toyselectronics industry:Plastic case, nylon strap, computer, speaker package shell, ... box, toothpaste tubes, etcgeneral commercial products:Typewriter ribbons, tape cartridge, tape cartridge, computer disks, etc Features of ultrasonic welding ... ;3. 2600 W power output, suitable for large plastic welding with good welding effect; 4. Use high ...