... welding machine for all kinds of plastic materials: Use to welding plastic parts like pvc, pp,pe,abs, pc,etc. Ultrasonic welding machine for ... heat consumption;(3). Easy operation, high efficiency, excellent outward appearance, and high strength;(4). Imported piezoelectric ceramic chips ... and clothing: valve bags, paper cups, dairy food packing cases, bag belts, zippersStationery and toys: ink boxes, ...