| 摘要 |
PURPOSE: A substrate for an electric heater is provided to be conveniently installed at a field by properly heating and warming pipes and equipment. CONSTITUTION: A substrate for an electric heater comprises a metal flat board(1). The metal flat board comprises a plurality of grooves(2). The plurality of grooves is in parallel to each other The metal flat board is bent along the length of the groove. The insulated heat line can be inserted into the grooves. |
