Steel hot Dawn Happy heat pipe production tube, different from the traditional steel water gravity heat pipe, through the study of professional military personnel engaged in more than 30 years of painstaking research, accumulated a lot of experience data, and surface treatment method using different materials, especially the use of independent research and development of "Chen Yi Chen Yi the heat pipe working fluid as the carrier of the heat pipe, chemical stability, high temperature decomposition, no loss, and material compatibility, infiltration of excellent performance; there is no corrosion of metals; long-term heating work without scaling or generation of non condensable gas, saturated vapor and latent heat of the water soluble several times. Out of the confusion criticized steel water gravity heat pipe industry industry for many years, Chen Yi industrial heat pipe dominate in various application fields, aviation, aerospace, military, petroleum, chemical, metallurgy, electroplating is widely used in domestic and abroad, Machinery, electronics, electricity, coal, railways, automobiles, communications, grain storage, textiles and other fields