Graphite equipment (graphite equipment) refers to equipment manufactured with graphite materials as substrates. Graphite equipment came out after solving the permeability of artificial graphite products and for the development of hydrochloric acid industry. In 1934, Germany impregnated with phenolic resin and cured the impermeable graphite into a plate trough graphite absorber. In 1936, the United States succeeded in trial-manufacturing the tubular graphite falling film absorber with extruded graphite tubes impregnated with phenolic resin in accordance with the structure of the popular steel tubular heat exchanger at that time. It was once known as a technological revolution at that time.