Shanghai Donsun Welding Group is a group company who specializes in R&D and manufacturing various kinds of welding & cutting equipments. The company covers an area of 100,000 square meters and a building area over 50,000 square meters in Shanghai China. The Company is the independence innovation brand in Shanghai Equipment & Hi-tech industry. With its efforts, the company wins lots of rewards like ?Shanghai High-tech enterprise , Shanghai well-known trademark , consumer trusted ...