SHANGHAI HONGJIN ULTRASONIC ELECTRONIC EQUIPMENT FACTORY is a professional ultrasonic welding machines manufacturer with more than 14 years experiences, offering ultrasonic plastic welding machine, ultrasonic sewing machine, Ultrasonic spot welding machine, spot welder, ultrasonic metal welding machine, automatic sponge scrubber making machine, geocell production line, geogrid production line, non woven bag making machine,etc. As a professional manufacturer of ultrasonic machines, HONGJIN is integrated by R&D, manufacturing, distribution and relative service as well. we insist the principle of 'quality the first, customers the highest' and ensure high quality, excellent service and sincere cooperation with customers all over the world. In order to serve our customers much better, our overseas after-sales department can provide fast after sale service all over the world after machines arrive customers' factory. In the past 14 years, we have exported over 135,000 sets ultrasonic machines to different customers around the world, and got great reputation from them. In the face of honor and achievement, HONGJIN people will Keep clear mind and work much harder, we hope HONGJIN can grow up with our customers, welcome to visit and cooperate with us.