Lianyungang Donghai welder certificate training center. The Lianyungang Donghai Welding Certificate Training Center, Huaihai Technician College, which has been verified for seven days, is a comprehensive training and verification counseling institution designated by the Municipal People's Social Security Bureau, Quality Inspection Bureau and Safety Supervision Bureau. It trains more than 65,438+0,000 certified students every year, with beautiful learning environment, advanced teaching equipment and abundant teachers. It is the best choice for aspiring young people to learn and improve.