| 摘要 |
PURPOSE: To provide a bottom plate of an evaporator, which is able to prevent corrosion of the bottom plate and is able to lower cost of materials. CONSTITUTION: The bottom plate comprises a stainless steel plate (14) as an inner side demanding good collosion resistance and a cheap carbon steel plate (16) having good welding ability, which is coupled to a lower side of the stainless steel plate. |
