Recently, another 9 people in YTHL passed the IIW (INTERNATIONAL INSTITUTE OFWELDING) assessment and obtained the international welding qualification certificate. This is the recognition of the international welding organization after our company obtained the AWS (shanghai) American standard welder qualification certificate. It also marks that our company's welding technology have reached international standards, and it provides a strong guarantee for the production of high-quality, standardized products for high-standard projects.