aws sfa 5.18 er70s-6_welding rod for tubular

The backbone of China's supremacy in welding electrodes is its extensive network of manufacturers with vast expertise. These companies, many of which possess decades of experience, employ advanced technologies and rigorous quality control processes. The focus is not merely on production volume but also on creating products that deliver exceptional performance and reliability. This is achieved through meticulous research and development efforts, often in collaboration with renowned technical institutes and industry experts.