BLACKBULL has a certified ISO9001 quality management system. All of our products can meet the quality standard of CE, ROHS, C-TICK, CSA, CCC and so on. During the past years, with the best effort of BLACKBULL, our products range cover the following list: MMA welder, TIG welder, TIG/MMA welder, AC/DC TIG welder, pulse AC/DC TIG/MMA welder, Plasma cutting machine, IGBT tube style of welding machine for personal using, IGBT module style of welding machine for heavy industry project, thyristor CO2 MIG/MAG welder, submerged arc welder, automatic welding equipment and so on. All of them have completely independent intellectual property rights.