WELDING Delta the leading stud welding machine and accessories manufacturer in China, provides stud welding machines" which are widely used in steel construction, power plants, express railways, ship building and other fields, has a complete line of stud welding machines. In addition to the traditional RSN series thyristor stud welding machines, We are the first in China to launch RSN7 series inverter stud welders, which are lighter, powerful, and energy efficient compared to thyristor models. This series proved to be very stable according to the rich operational practices of our customers. We also make RSR series capacitor discharge stud welding machines and provide accessories. Meanwhile, our products are also used in several industries such as power generation, ship building, fireproof construction, we have been adopted in stud welding works with many important steel construction projects such as Shanghai Expo China Pavilion, Canton Tower, Beijing-Shanghai express railway, Shanghai Pudong International Airport, Shanghai Shimao International Plaza and some other supporting works. Quality and leading innovation for the future is our guideline