Who We Are Since 2000, Shenzhen Hipower Ltd. ( its predecessor Rili Machinery (Shenzhen) Co., Ltd.) is the leader as manufacturer specialized in high frequency welding machine, ultrasonic plastic welding machine, ultrasonic cleaner and cylinder box making machine. A Leadership Position "Pursuing Excellence, Creating Value" is our only persistance and destination. High quality, competitive price, professional tech support, customer-oriented service make us, HIPOWER, a leader full of power and creativity. Our Advantages and Service High Frequency Welding Machine, suitable for the materials like PVC, leather, tarpaulin, tent, environmental-protect APET,PETG etc; Ultrasonic Welding Machine, applied for the materials like PP, ABS, Acrylic, etc. Cylinder/Tube Making Machine, designed..