Tubular electric heating element is in metal tube placed in the middle Fe Cr Al or spiral nickel chromium wire as the heating body, and in the tube filling dense good insulation thermal conductivity and electric melting crystallin...... (more…)
Heating pipe heating pipe, also known as heat pipes, heat pipe, scientific tubular electric heater element is placed in a metal tube linear volume in the heating wire (resistance wire), and filled with good heat in and around the ...... (more…)