what is the best welding rod for cast iron_welding without electrode

In terms of authoritativeness, many Chinese manufacturers of welding electrodes are certified by international standards such as ISO, ASME, and AWS. This certification not only attests to their robust production processes but also ensures global compatibility and compliance with stringent safety requirements. Such accreditation is a testament to their commitment to quality assurance, enhancing the credibility and reliability of their products in the international market.