Companies were identified as high-tech enterprises in Shandong Province, Shandong Province outstanding private scientific and technological enterprises, innovative pilot enterprises in Shandong Province, Rizhao City focus on promoting listed companies, advanced enterprises in Rizhao City science and technology progress, Rizhao City advanced enterprise management and so on. Won the national science and Technology Ministry of science and technology action plan projects. Rizhao City science and Technology Progress Award for four consecutive years. "Port" is a trademark of Shandong Province, the production of Shuanggang brand piston as "Shandong famous brand" products.