METAL TUBE, HEAT TRANSFER TUBE, HEAT EXCHANGE DEVICE, AND METHOD FOR MANUFACTURING METAL TUBE

摘要

A metal tube including a metal substrate and a metal porous body disposed on at least part of a surface of the metal substrate. The metal tube is obtained by the steps of: joining the metal porous body to at least part of the surface of the metal substrate in flat plate form; and forming the metal substrate with the metal porous body joined thereto into a tubular shape.