The Tungsten Electrode Chuck are of high quality,durable and safety.We have more than 20 years on welding industry. The Tungsten Electrode Chuck are of high quality,durable and safety.We have more than 20 years on welding industry.The Tungsten Electrode apply for QS200A Argon Welding Torch.Our company specializes in various kinds of welding machine, such as: argon arc welding guns, plasma cutters ...