Davison Machinery is famous China Pvc tarpaulin welding machine manufacturers and plastic welders factory,company established in 1999 by Mr. Huang Guosheng, is a leading manufacturer and supplier of plastic welder in China, specializing in high frequency welding machine, ultrasonic welding machine and related automatic equipment. It covers an area of more than 8,000 square meters in Hi-tech Zone, Ningbo City, China.