Long enterprise history, leading technology R & D and innovation capabilities National "high-tech enterprise" National "green factory" "Specialized, refined and novel" small and medium-sized enterprises in Shandong Province "Invisible Champion" Enterprise of Small and Medium-sized Enterprises in Shandong Province "One Enterprise, One Technology" Innovative Enterprise in Shandong Province Famous brand in Shandong Province New patent for invention of "dedicated graphite heat exchanger for potassium sulfate" New patent for invention of "block with holes type graphite heat exchanger and its heat exchange method" Class I and II pressure vessel manufacturing qualification Design and manufacturing qualification of Class A4 graphite pressure vessel Member of China Chemical Industrial Equipment Association Member of China Standardized Equipment Technology Association Member of the board of directors of China Industry Anticorrosion Technology Association One of the earliest established enterprises in the domestic graphite chemical equipment industry |